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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.96 by root, Fri Dec 22 06:02:29 2006 UTC vs.
Revision 1.349 by root, Fri Aug 31 04:10:43 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro;	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18
19	use IO::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
		29	use Digest::MD5;
		30	use Fcntl;
20	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
21	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
22		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
24		44
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
27		47
28	$Coro::main->prio (Coro::PRIO_MIN);	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		49
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		51
32	our %COMMAND = ();	52	our %COMMAND = ();
33	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
35		60
36	_init_vars;	61	our $RELOAD; # number of reloads so far
37
38	our @EVENT;	62	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		63
41	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
42	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	80	our $NEXT_TICK;
		81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $DB_ENV;
44		86
45	our %CFG;	87	our %CFG;
46		88
47	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
		90	our $RUNTIME;
		91
		92	our %PLAYER; # all users
		93	our %MAP; # all maps
		94	our $LINK_MAP; # the special {link} map, which is always available
		95
		96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
		102
		103	binmode STDOUT;
		104	binmode STDERR;
		105
		106	# read virtual server time, if available
		107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		108	open my $fh, "<", "$LOCALDIR/runtime"
		109	or die "unable to read runtime file: $!";
		110	$RUNTIME = <$fh> + 0.;
		111	}
		112
		113	mkdir $_
		114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		115
		116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
48		119
49	#############################################################################	120	#############################################################################
50		121
51	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
52		123
…		…
54		125
55	=item $cf::UPTIME	126	=item $cf::UPTIME
56		127
57	The timestamp of the server start (so not actually an uptime).	128	The timestamp of the server start (so not actually an uptime).
58		129
59	=item $cf::LIBDIR	130	=item $cf::RUNTIME
60		131
61	The perl library directory, where extensions and cf-specific modules can	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
62	be found. It will be added to C<@INC> automatically.	133	every server tick.
		134
		135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		138
		139	Various directories - "/etc", read-only install directory, perl-library
		140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
		143
		144	=item $cf::NOW
		145
		146	The time of the last (current) server tick.
63		147
64	=item $cf::TICK	148	=item $cf::TICK
65		149
66	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
67		161
68	=item %cf::CFG	162	=item %cf::CFG
69		163
70	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
71	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
72		178
73	=back	179	=back
74		180
75	=cut	181	=cut
76		182
77	BEGIN {	183	BEGIN {
78	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
79	my $msg = join "", @_;	185	my $msg = join "", @_;
		186
80	$msg .= "\n"	187	$msg .= "\n"
81	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
82		189
83	print STDERR "cfperl: $msg";	190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
84	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
85	};	194	};
86	}	195	}
87		196
88	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
89	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
90	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
91	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
92	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
93	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
94		204
95	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
96	# within the Safe compartment.	206	# within the Safe compartment.
97	for my $pkg (qw(	207	for my $pkg (qw(
98	cf::global	208	cf::global cf::attachable
99	cf::object cf::object::player	209	cf::object cf::object::player
100	cf::client cf::player	210	cf::client cf::player
101	cf::arch cf::living	211	cf::arch cf::living
102	cf::map cf::party cf::region	212	cf::map cf::party cf::region
103	)) {	213	)) {
…		…
107		217
108	$Event::DIED = sub {	218	$Event::DIED = sub {
109	warn "error in event callback: @_";	219	warn "error in event callback: @_";
110	};	220	};
111		221
112	my %ext_pkg;	222	#############################################################################
113	my @exts;
114	my @hook;
115		223
116	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
117		225
118	=over 4	226	=over 4
119		227
120	=cut	228	=item dumpval $ref
121		229
122	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
123		250
124	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
125		252
126	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
127		254
128	=cut
129
130	sub from_json($) {
131	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
132	JSON::Syck::Load $_[0]
133	}
134
135	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
136		256
137	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
138		258
139	=cut	259	=cut
140		260
141	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
142	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
143	JSON::Syck::Dump $_[0]	263	sub to_json ($) { $json_coder->encode ($_[0]) }
		264	sub from_json ($) { $json_coder->decode ($_[0]) }
		265
		266	=item cf::lock_wait $string
		267
		268	Wait until the given lock is available. See cf::lock_acquire.
		269
		270	=item my $lock = cf::lock_acquire $string
		271
		272	Wait until the given lock is available and then acquires it and returns
		273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		274	for example when the coroutine gets canceled), the lock is automatically
		275	returned.
		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
		280	Lock names should begin with a unique identifier (for example, cf::map::find
		281	uses map_find and cf::map::load uses map_load).
		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
		287	=cut
		288
		289	our %LOCK;
		290
		291	sub lock_wait($) {
		292	my ($key) = @_;
		293
		294	# wait for lock, if any
		295	while ($LOCK{$key}) {
		296	push @{ $LOCK{$key} }, $Coro::current;
		297	Coro::schedule;
		298	}
		299	}
		300
		301	sub lock_acquire($) {
		302	my ($key) = @_;
		303
		304	# wait, to be sure we are not locked
		305	lock_wait $key;
		306
		307	$LOCK{$key} = [];
		308
		309	Coro::guard {
		310	# wake up all waiters, to be on the safe side
		311	$_->ready for @{ delete $LOCK{$key} };
		312	}
		313	}
		314
		315	sub lock_active($) {
		316	my ($key) = @_;
		317
		318	! ! $LOCK{$key}
		319	}
		320
		321	sub freeze_mainloop {
		322	return unless $TICK_WATCHER->is_active;
		323
		324	my $guard = Coro::guard {
		325	$TICK_WATCHER->start;
		326	};
		327	$TICK_WATCHER->stop;
		328	$guard
		329	}
		330
		331	=item cf::get_slot $time[, $priority[, $name]]
		332
		333	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		334	This call blocks and returns only when you have at least C<$time> seconds
		335	of cpu time till the next tick. The slot is only valid till the next cede.
		336
		337	The optional C<$name> can be used to identify the job to run. It might be
		338	used for statistical purposes and should identify the same time-class.
		339
		340	Useful for short background jobs.
		341
		342	=cut
		343
		344	our @SLOT_QUEUE;
		345	our $SLOT_QUEUE;
		346
		347	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		348	$SLOT_QUEUE = Coro::async {
		349	my $signal = new Coro::Signal;
		350
		351	while () {
		352	next_job:
		353	my $avail = cf::till_tick;
		354	if ($avail > 0.01) {
		355	for (0 .. $#SLOT_QUEUE) {
		356	if ($SLOT_QUEUE[$_][0] < $avail) {
		357	my $job = splice @SLOT_QUEUE, $_, 1, ();
		358	$job->[2]->send;
		359	Coro::cede;
		360	goto next_job;
		361	}
		362	}
		363	}
		364
		365	if (@SLOT_QUEUE) {
		366	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		367	push @cf::WAIT_FOR_TICK, $signal;
		368	$signal->wait;
		369	} else {
		370	Coro::schedule;
		371	}
		372	}
		373	};
		374
		375	sub get_slot($;$$) {
		376	my ($time, $pri, $name) = @_;
		377
		378	$time = $TICK * .6 if $time > $TICK * .6;
		379	my $sig = new Coro::Signal;
		380
		381	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		382	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		383	$SLOT_QUEUE->ready;
		384	$sig->wait;
		385	}
		386
		387	=item cf::async { BLOCK }
		388
		389	Currently the same as Coro::async_pool, meaning you cannot use
		390	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		391	thing you are allowed to do is call C<prio> on it.
		392
		393	=cut
		394
		395	BEGIN { *async = \&Coro::async_pool }
		396
		397	=item cf::sync_job { BLOCK }
		398
		399	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		400	is always able to handle events or runnable, as Crossfire TRT is only
		401	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		402	acceptable.
		403
		404	If it must be done, put the blocking parts into C<sync_job>. This will run
		405	the given BLOCK in another coroutine while waiting for the result. The
		406	server will be frozen during this time, so the block should either finish
		407	fast or be very important.
		408
		409	=cut
		410
		411	sub sync_job(&) {
		412	my ($job) = @_;
		413
		414	if ($Coro::current == $Coro::main) {
		415	my $time = Event::time;
		416
		417	# this is the main coro, too bad, we have to block
		418	# till the operation succeeds, freezing the server :/
		419
		420	# TODO: use suspend/resume instead
		421	# (but this is cancel-safe)
		422	my $freeze_guard = freeze_mainloop;
		423
		424	my $busy = 1;
		425	my @res;
		426
		427	(async {
		428	@res = eval { $job->() };
		429	warn $@ if $@;
		430	undef $busy;
		431	})->prio (Coro::PRIO_MAX);
		432
		433	while ($busy) {
		434	Coro::cede or Event::one_event;
		435	}
		436
		437	$time = Event::time - $time;
		438
		439	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		440	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		441
		442	$tick_start += $time; # do not account sync jobs to server load
		443
		444	wantarray ? @res : $res[0]
		445	} else {
		446	# we are in another coroutine, how wonderful, everything just works
		447
		448	$job->()
		449	}
		450	}
		451
		452	=item $coro = cf::async_ext { BLOCK }
		453
		454	Like async, but this coro is automatically being canceled when the
		455	extension calling this is being unloaded.
		456
		457	=cut
		458
		459	sub async_ext(&) {
		460	my $cb = shift;
		461
		462	my $coro = &Coro::async ($cb);
		463
		464	$coro->on_destroy (sub {
		465	delete $EXT_CORO{$coro+0};
		466	});
		467	$EXT_CORO{$coro+0} = $coro;
		468
		469	$coro
		470	}
		471
		472	=item fork_call { }, $args
		473
		474	Executes the given code block with the given arguments in a seperate
		475	process, returning the results. Everything must be serialisable with
		476	Coro::Storable. May, of course, block. Note that the executed sub may
		477	never block itself or use any form of Event handling.
		478
		479	=cut
		480
		481	sub fork_call(&@) {
		482	my ($cb, @args) = @_;
		483
		484	# we seemingly have to make a local copy of the whole thing,
		485	# otherwise perl prematurely frees the stuff :/
		486	# TODO: investigate and fix (liekly this will be rather laborious)
		487
		488	my @res = Coro::Util::fork_eval {
		489	reset_signals;
		490	&$cb
		491	}, @args;
		492
		493	wantarray ? @res : $res[-1]
		494	}
		495
		496	=item $value = cf::db_get $family => $key
		497
		498	Returns a single value from the environment database.
		499
		500	=item cf::db_put $family => $key => $value
		501
		502	Stores the given C<$value> in the family. It can currently store binary
		503	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		504
		505	=cut
		506
		507	our $DB;
		508
		509	sub db_init {
		510	unless ($DB) {
		511	$DB = BDB::db_create $DB_ENV;
		512
		513	cf::sync_job {
		514	eval {
		515	$DB->set_flags (BDB::CHKSUM);
		516
		517	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		518	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		519	cf::cleanup "db_open(db): $!" if $!;
		520	};
		521	cf::cleanup "db_open(db): $@" if $@;
		522	};
		523	}
		524	}
		525
		526	sub db_get($$) {
		527	my $key = "$_[0]/$_[1]";
		528
		529	cf::sync_job {
		530	BDB::db_get $DB, undef, $key, my $data;
		531
		532	$! ? ()
		533	: $data
		534	}
		535	}
		536
		537	sub db_put($$$) {
		538	BDB::dbreq_pri 4;
		539	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		540	}
		541
		542	=item cf::cache $id => [$paths...], $processversion => $process
		543
		544	Generic caching function that returns the value of the resource $id,
		545	caching and regenerating as required.
		546
		547	This function can block.
		548
		549	=cut
		550
		551	sub cache {
		552	my ($id, $src, $processversion, $process) = @_;
		553
		554	my $meta =
		555	join "\x00",
		556	$processversion,
		557	map {
		558	aio_stat $_
		559	and Carp::croak "$_: $!";
		560
		561	($_, (stat _)[7,9])
		562	} @$src;
		563
		564	my $dbmeta = db_get cache => "$id/meta";
		565	if ($dbmeta ne $meta) {
		566	# changed, we may need to process
		567
		568	my @data;
		569	my $md5;
		570
		571	for (0 .. $#$src) {
		572	0 <= aio_load $src->[$_], $data[$_]
		573	or Carp::croak "$src->[$_]: $!";
		574	}
		575
		576	# if processing is expensive, check
		577	# checksum first
		578	if (1) {
		579	$md5 =
		580	join "\x00",
		581	$processversion,
		582	map {
		583	cf::cede_to_tick;
		584	($src->[$_], Digest::MD5::md5_hex $data[$_])
		585	} 0.. $#$src;
		586
		587
		588	my $dbmd5 = db_get cache => "$id/md5";
		589	if ($dbmd5 eq $md5) {
		590	db_put cache => "$id/meta", $meta;
		591
		592	return db_get cache => "$id/data";
		593	}
		594	}
		595
		596	my $t1 = Time::HiRes::time;
		597	my $data = $process->(\@data);
		598	my $t2 = Time::HiRes::time;
		599
		600	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		601
		602	db_put cache => "$id/data", $data;
		603	db_put cache => "$id/md5" , $md5;
		604	db_put cache => "$id/meta", $meta;
		605
		606	return $data;
		607	}
		608
		609	db_get cache => "$id/data"
		610	}
		611
		612	=item cf::datalog type => key => value, ...
		613
		614	Log a datalog packet of the given type with the given key-value pairs.
		615
		616	=cut
		617
		618	sub datalog($@) {
		619	my ($type, %kv) = @_;
		620	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
144	}	621	}
145		622
146	=back	623	=back
147		624
148	=cut	625	=cut
…		…
155	attach callbacks/event handlers (a collection of which is called an "attachment")	632	attach callbacks/event handlers (a collection of which is called an "attachment")
156	to it. All such attachable objects support the following methods.	633	to it. All such attachable objects support the following methods.
157		634
158	In the following description, CLASS can be any of C<global>, C<object>	635	In the following description, CLASS can be any of C<global>, C<object>
159	C<player>, C<client> or C<map> (i.e. the attachable objects in	636	C<player>, C<client> or C<map> (i.e. the attachable objects in
160	crossfire+).	637	Crossfire TRT).
161		638
162	=over 4	639	=over 4
163		640
164	=item $attachable->attach ($attachment, key => $value...)	641	=item $attachable->attach ($attachment, key => $value...)
165		642
…		…
269	exception.	746	exception.
270		747
271	=cut	748	=cut
272		749
273	# the following variables are defined in .xs and must not be re-created	750	# the following variables are defined in .xs and must not be re-created
274	our @CB_GLOBAL = (); # registry for all global events	751	our @CB_GLOBAL = (); # registry for all global events
		752	our @CB_ATTACHABLE = (); # registry for all attachables
275	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	753	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276	our @CB_PLAYER = ();	754	our @CB_PLAYER = ();
277	our @CB_CLIENT = ();	755	our @CB_CLIENT = ();
278	our @CB_TYPE = (); # registry for type (cf-object class) based events	756	our @CB_TYPE = (); # registry for type (cf-object class) based events
279	our @CB_MAP = ();	757	our @CB_MAP = ();
280		758
281	my %attachment;	759	my %attachment;
		760
		761	sub cf::attachable::thawer_merge {
		762	# simply override everything except _meta
		763	local $_[0]{_meta};
		764	%{$_[0]} = %{$_[1]};
		765	}
282		766
283	sub _attach_cb($$$$) {	767	sub _attach_cb($$$$) {
284	my ($registry, $event, $prio, $cb) = @_;	768	my ($registry, $event, $prio, $cb) = @_;
285		769
286	use sort 'stable';	770	use sort 'stable';
…		…
289		773
290	@{$registry->[$event]} = sort	774	@{$registry->[$event]} = sort
291	{ $a->[0] cmp $b->[0] }	775	{ $a->[0] cmp $b->[0] }
292	@{$registry->[$event] || []}, $cb;	776	@{$registry->[$event] || []}, $cb;
293	}	777	}
		778
		779	# hack
		780	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294		781
295	# attach handles attaching event callbacks	782	# attach handles attaching event callbacks
296	# the only thing the caller has to do is pass the correct	783	# the only thing the caller has to do is pass the correct
297	# registry (== where the callback attaches to).	784	# registry (== where the callback attaches to).
298	sub _attach {	785	sub _attach {
…		…
300		787
301	my $object_type;	788	my $object_type;
302	my $prio = 0;	789	my $prio = 0;
303	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	790	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304		791
		792	#TODO: get rid of this hack
		793	if ($attachable_klass{$klass}) {
		794	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		795	}
		796
305	while (@arg) {	797	while (@arg) {
306	my $type = shift @arg;	798	my $type = shift @arg;
307		799
308	if ($type eq "prio") {	800	if ($type eq "prio") {
309	$prio = shift @arg;	801	$prio = shift @arg;
…		…
313	$registry = $CB_TYPE[$object_type] ||= [];	805	$registry = $CB_TYPE[$object_type] ||= [];
314		806
315	} elsif ($type eq "subtype") {	807	} elsif ($type eq "subtype") {
316	defined $object_type or Carp::croak "subtype specified without type";	808	defined $object_type or Carp::croak "subtype specified without type";
317	my $object_subtype = shift @arg;	809	my $object_subtype = shift @arg;
318	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	810	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
319		811
320	} elsif ($type eq "package") {	812	} elsif ($type eq "package") {
321	my $pkg = shift @arg;	813	my $pkg = shift @arg;
322		814
323	while (my ($name, $id) = each %cb_id) {	815	while (my ($name, $id) = each %cb_id) {
…		…
352	_attach $registry, $klass, @attach;	844	_attach $registry, $klass, @attach;
353	}	845	}
354		846
355	$obj->{$name} = \%arg;	847	$obj->{$name} = \%arg;
356	} else {	848	} else {
357	warn "object uses attachment '$name' that is not available, postponing.\n";	849	warn "object uses attachment '$name' which is not available, postponing.\n";
358	}	850	}
359		851
360	$obj->{_attachment}{$name} = undef;	852	$obj->{_attachment}{$name} = undef;
361	}	853	}
362		854
…		…
364	if (ref $_[0]) {	856	if (ref $_[0]) {
365	_object_attach @_;	857	_object_attach @_;
366	} else {	858	} else {
367	_attach shift->_attach_registry, @_;	859	_attach shift->_attach_registry, @_;
368	}	860	}
		861	_recalc_want;
369	};	862	};
370		863
371	# all those should be optimised	864	# all those should be optimised
372	sub cf::attachable::detach {	865	sub cf::attachable::detach {
373	my ($obj, $name) = @_;	866	my ($obj, $name) = @_;
…		…
376	delete $obj->{_attachment}{$name};	869	delete $obj->{_attachment}{$name};
377	reattach ($obj);	870	reattach ($obj);
378	} else {	871	} else {
379	Carp::croak "cannot, currently, detach class attachments";	872	Carp::croak "cannot, currently, detach class attachments";
380	}	873	}
		874	_recalc_want;
381	};	875	};
382		876
383	sub cf::attachable::attached {	877	sub cf::attachable::attached {
384	my ($obj, $name) = @_;	878	my ($obj, $name) = @_;
385		879
386	exists $obj->{_attachment}{$name}	880	exists $obj->{_attachment}{$name}
387	}	881	}
388		882
389	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	883	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390	eval "#line " . __LINE__ . " 'cf.pm'	884	eval "#line " . __LINE__ . " 'cf.pm'
391	sub cf::\L$klass\E::_attach_registry {	885	sub cf::\L$klass\E::_attach_registry {
392	(\\\@CB_$klass, KLASS_$klass)	886	(\\\@CB_$klass, KLASS_$klass)
393	}	887	}
394		888
…		…
400	";	894	";
401	die if $@;	895	die if $@;
402	}	896	}
403		897
404	our $override;	898	our $override;
405	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	899	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
406		900
407	sub override {	901	sub override {
408	$override = 1;	902	$override = 1;
409	@invoke_results = ();	903	@INVOKE_RESULTS = (@_);
410	}	904	}
411		905
412	sub do_invoke {	906	sub do_invoke {
413	my $event = shift;	907	my $event = shift;
414	my $callbacks = shift;	908	my $callbacks = shift;
415		909
416	@invoke_results = ();	910	@INVOKE_RESULTS = ();
417		911
418	local $override;	912	local $override;
419		913
420	for (@$callbacks) {	914	for (@$callbacks) {
421	eval { &{$_->[1]} };	915	eval { &{$_->[1]} };
…		…
438		932
439	Generate an object-specific event with the given arguments.	933	Generate an object-specific event with the given arguments.
440		934
441	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	935	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
442	removed in future versions), and there is no public API to access override	936	removed in future versions), and there is no public API to access override
443	results (if you must, access C<@cf::invoke_results> directly).	937	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
444		938
445	=back	939	=back
446		940
447	=cut	941	=cut
448		942
449	#############################################################################	943	#############################################################################
450	# object support	944	# object support
		945	#
451		946
452	sub instantiate {	947	sub _can_merge {
453	my ($obj, $data) = @_;	948	my ($ob1, $ob2) = @_;
454		949
455	$data = from_json $data;	950	local $Storable::canonical = 1;
		951	my $fob1 = Storable::freeze $ob1;
		952	my $fob2 = Storable::freeze $ob2;
456		953
457	for (@$data) {	954	$fob1 eq $fob2
458	my ($name, $args) = @$_;
459
460	$obj->attach ($name, %{$args || {} });
461	}
462	}	955	}
463		956
464	# basically do the same as instantiate, without calling instantiate
465	sub reattach {	957	sub reattach {
		958	# basically do the same as instantiate, without calling instantiate
466	my ($obj) = @_;	959	my ($obj) = @_;
		960
		961	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		962
467	my $registry = $obj->registry;	963	my $registry = $obj->registry;
468		964
469	@$registry = ();	965	@$registry = ();
470		966
471	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	967	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
480	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' that is not available, postponing.\n";
481	}	977	}
482	}	978	}
483	}	979	}
484		980
485	sub object_freezer_save {	981	cf::attachable->attach (
486	my ($filename, $rdata, $objs) = @_;
487
488	if (length $$rdata) {
489	warn sprintf "saving %s (%d,%d)\n",
490	$filename, length $$rdata, scalar @$objs;
491
492	if (open my $fh, ">:raw", "$filename~") {
493	chmod SAVE_MODE, $fh;
494	syswrite $fh, $$rdata;
495	close $fh;
496
497	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
498	chmod SAVE_MODE, $fh;
499	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
500	close $fh;
501	rename "$filename.pst~", "$filename.pst";
502	} else {
503	unlink "$filename.pst";
504	}
505
506	rename "$filename~", $filename;
507	} else {
508	warn "FATAL: $filename~: $!\n";
509	}
510	} else {
511	unlink $filename;
512	unlink "$filename.pst";
513	}
514	}
515
516	sub object_freezer_as_string {
517	my ($rdata, $objs) = @_;
518
519	use Data::Dumper;
520
521	$$rdata . Dumper $objs
522	}
523
524	sub object_thawer_load {
525	my ($filename) = @_;
526
527	local $/;
528
529	my $av;
530
531	#TODO: use sysread etc.
532	if (open my $data, "<:raw:perlio", $filename) {
533	$data = <$data>;
534	if (open my $pst, "<:raw:perlio", "$filename.pst") {
535	$av = eval { (Storable::thaw <$pst>)->{objs} };
536	}
537	return ($data, $av);
538	}
539
540	()
541	}
542
543	cf::object->attach (
544	prio => -1000000,	982	prio => -1000000,
		983	on_instantiate => sub {
		984	my ($obj, $data) = @_;
		985
		986	$data = from_json $data;
		987
		988	for (@$data) {
		989	my ($name, $args) = @$_;
		990
		991	$obj->attach ($name, %{$args || {} });
		992	}
		993	},
		994	on_reattach => \&reattach,
545	on_clone => sub {	995	on_clone => sub {
546	my ($src, $dst) = @_;	996	my ($src, $dst) = @_;
547		997
548	@{$dst->registry} = @{$src->registry};	998	@{$dst->registry} = @{$src->registry};
549		999
…		…
552	%{$dst->{_attachment}} = %{$src->{_attachment}}	1002	%{$dst->{_attachment}} = %{$src->{_attachment}}
553	if exists $src->{_attachment};	1003	if exists $src->{_attachment};
554	},	1004	},
555	);	1005	);
556		1006
		1007	sub object_freezer_save {
		1008	my ($filename, $rdata, $objs) = @_;
		1009
		1010	sync_job {
		1011	if (length $$rdata) {
		1012	warn sprintf "saving %s (%d,%d)\n",
		1013	$filename, length $$rdata, scalar @$objs;
		1014
		1015	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		1016	chmod SAVE_MODE, $fh;
		1017	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1018	aio_fsync $fh if $cf::USE_FSYNC;
		1019	close $fh;
		1020
		1021	if (@$objs) {
		1022	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1023	chmod SAVE_MODE, $fh;
		1024	my $data = Storable::nfreeze { version => 1, objs => $objs };
		1025	aio_write $fh, 0, (length $data), $data, 0;
		1026	aio_fsync $fh if $cf::USE_FSYNC;
		1027	close $fh;
		1028	aio_rename "$filename.pst~", "$filename.pst";
		1029	}
		1030	} else {
		1031	aio_unlink "$filename.pst";
		1032	}
		1033
		1034	aio_rename "$filename~", $filename;
		1035	} else {
		1036	warn "FATAL: $filename~: $!\n";
		1037	}
		1038	} else {
		1039	aio_unlink $filename;
		1040	aio_unlink "$filename.pst";
		1041	}
		1042	}
		1043	}
		1044
		1045	sub object_freezer_as_string {
		1046	my ($rdata, $objs) = @_;
		1047
		1048	use Data::Dumper;
		1049
		1050	$$rdata . Dumper $objs
		1051	}
		1052
		1053	sub object_thawer_load {
		1054	my ($filename) = @_;
		1055
		1056	my ($data, $av);
		1057
		1058	(aio_load $filename, $data) >= 0
		1059	or return;
		1060
		1061	unless (aio_stat "$filename.pst") {
		1062	(aio_load "$filename.pst", $av) >= 0
		1063	or return;
		1064	$av = eval { (Storable::thaw $av)->{objs} };
		1065	}
		1066
		1067	warn sprintf "loading %s (%d)\n",
		1068	$filename, length $data, scalar @{$av || []};
		1069	return ($data, $av);
		1070	}
		1071
		1072	=head2 COMMAND CALLBACKS
		1073
		1074	=over 4
		1075
		1076	=cut
		1077
557	#############################################################################	1078	#############################################################################
558	# command handling &c	1079	# command handling &c
559		1080
560	=item cf::register_command $name => \&callback($ob,$args);	1081	=item cf::register_command $name => \&callback($ob,$args);
561		1082
…		…
573	push @{ $COMMAND{$name} }, [$caller, $cb];	1094	push @{ $COMMAND{$name} }, [$caller, $cb];
574	}	1095	}
575		1096
576	=item cf::register_extcmd $name => \&callback($pl,$packet);	1097	=item cf::register_extcmd $name => \&callback($pl,$packet);
577		1098
578	Register a callbackf ro execution when the client sends an extcmd packet.	1099	Register a callback for execution when the client sends an (synchronous)
		1100	extcmd packet. Ext commands will be processed in the order they are
		1101	received by the server, like other user commands. The first argument is
		1102	the logged-in player. Ext commands can only be processed after a player
		1103	has logged in successfully.
579		1104
580	If the callback returns something, it is sent back as if reply was being	1105	If the callback returns something, it is sent back as if reply was being
581	called.	1106	called.
582		1107
		1108	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1109
		1110	Register a callback for execution when the client sends an (asynchronous)
		1111	exticmd packet. Exti commands are processed by the server as soon as they
		1112	are received, i.e. out of order w.r.t. other commands. The first argument
		1113	is a client socket. Exti commands can be received anytime, even before
		1114	log-in.
		1115
		1116	If the callback returns something, it is sent back as if reply was being
		1117	called.
		1118
583	=cut	1119	=cut
584		1120
585	sub register_extcmd {	1121	sub register_extcmd {
586	my ($name, $cb) = @_;	1122	my ($name, $cb) = @_;
587		1123
588	my $caller = caller;
589	#warn "registering extcmd '$name' to '$caller'";
590
591	$EXTCMD{$name} = [$cb, $caller];	1124	$EXTCMD{$name} = $cb;
		1125	}
		1126
		1127	sub register_exticmd {
		1128	my ($name, $cb) = @_;
		1129
		1130	$EXTICMD{$name} = $cb;
592	}	1131	}
593		1132
594	cf::player->attach (	1133	cf::player->attach (
595	on_command => sub {	1134	on_command => sub {
596	my ($pl, $name, $params) = @_;	1135	my ($pl, $name, $params) = @_;
…		…
605	cf::override;	1144	cf::override;
606	},	1145	},
607	on_extcmd => sub {	1146	on_extcmd => sub {
608	my ($pl, $buf) = @_;	1147	my ($pl, $buf) = @_;
609		1148
610	my $msg = eval { from_json $buf };	1149	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
611		1150
612	if (ref $msg) {	1151	if (ref $msg) {
		1152	my ($type, $reply, @payload) =
		1153	"ARRAY" eq ref $msg
		1154	? @$msg
		1155	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1156
		1157	my @reply;
		1158
613	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1159	if (my $cb = $EXTCMD{$type}) {
614	if (my %reply = $cb->[0]->($pl, $msg)) {	1160	@reply = $cb->($pl, @payload);
615	$pl->ext_reply ($msg->{msgid}, %reply);
616	}
617	}	1161	}
		1162
		1163	$pl->ext_reply ($reply, @reply)
		1164	if $reply;
		1165
618	} else {	1166	} else {
619	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1167	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
620	}	1168	}
621		1169
622	cf::override;	1170	cf::override;
623	},	1171	},
624	);	1172	);
625		1173
		1174	sub load_extensions {
		1175	cf::sync_job {
		1176	my %todo;
		1177
		1178	for my $path (<$LIBDIR/*.ext>) {
		1179	next unless -r $path;
		1180
		1181	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1182	my $base = $1;
		1183	my $pkg = $1;
		1184	$pkg =~ s/[^[:word:]]/_/g;
		1185	$pkg = "ext::$pkg";
		1186
		1187	open my $fh, "<:utf8", $path
		1188	or die "$path: $!";
		1189
		1190	my $source = do { local $/; <$fh> };
		1191
		1192	my %ext = (
		1193	path => $path,
		1194	base => $base,
		1195	pkg => $pkg,
		1196	);
		1197
		1198	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1199	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1200
		1201	$ext{source} =
		1202	"package $pkg; use strict; use utf8;\n"
		1203	. "#line 1 \"$path\"\n{\n"
		1204	. $source
		1205	. "\n};\n1";
		1206
		1207	$todo{$base} = \%ext;
		1208	}
		1209
		1210	my %done;
		1211	while (%todo) {
		1212	my $progress;
		1213
		1214	while (my ($k, $v) = each %todo) {
		1215	for (split /,\s*/, $v->{meta}{depends}) {
		1216	goto skip
		1217	unless exists $done{$_};
		1218	}
		1219
		1220	warn "... loading '$k' into '$v->{pkg}'\n";
		1221
		1222	unless (eval $v->{source}) {
		1223	my $msg = $@ ? "$v->{path}: $@\n"
		1224	: "$v->{base}: extension inactive.\n";
		1225
		1226	if (exists $v->{meta}{mandatory}) {
		1227	warn $msg;
		1228	warn "mandatory extension failed to load, exiting.\n";
		1229	exit 1;
		1230	}
		1231
		1232	warn $msg;
		1233	}
		1234
		1235	$done{$k} = delete $todo{$k};
		1236	push @EXTS, $v->{pkg};
		1237	$progress = 1;
		1238	}
		1239
		1240	skip:
		1241	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1242	unless $progress;
		1243	}
		1244	};
		1245	}
		1246
		1247	#############################################################################
		1248
		1249	=back
		1250
		1251	=head2 CORE EXTENSIONS
		1252
		1253	Functions and methods that extend core crossfire objects.
		1254
		1255	=cut
		1256
		1257	package cf::player;
		1258
		1259	use Coro::AIO;
		1260
		1261	=head3 cf::player
		1262
		1263	=over 4
		1264
		1265	=item cf::player::find $login
		1266
		1267	Returns the given player object, loading it if necessary (might block).
		1268
		1269	=cut
		1270
		1271	sub playerdir($) {
		1272	"$PLAYERDIR/"
		1273	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1274	}
		1275
		1276	sub path($) {
		1277	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1278
		1279	(playerdir $login) . "/playerdata"
		1280	}
		1281
		1282	sub find_active($) {
		1283	$cf::PLAYER{$_[0]}
		1284	and $cf::PLAYER{$_[0]}->active
		1285	and $cf::PLAYER{$_[0]}
		1286	}
		1287
		1288	sub exists($) {
		1289	my ($login) = @_;
		1290
		1291	$cf::PLAYER{$login}
		1292	or cf::sync_job { !aio_stat path $login }
		1293	}
		1294
		1295	sub find($) {
		1296	return $cf::PLAYER{$_[0]} || do {
		1297	my $login = $_[0];
		1298
		1299	my $guard = cf::lock_acquire "user_find:$login";
		1300
		1301	$cf::PLAYER{$_[0]} || do {
		1302	# rename old playerfiles to new ones
		1303	#TODO: remove when no longer required
		1304	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1305	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1306	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1307	aio_unlink +(playerdir $login) . "/$login.pl";
		1308
		1309	my $pl = load_pl path $login
		1310	or return;
		1311	$cf::PLAYER{$login} = $pl
		1312	}
		1313	}
		1314	}
		1315
		1316	sub save($) {
		1317	my ($pl) = @_;
		1318
		1319	return if $pl->{deny_save};
		1320
		1321	my $path = path $pl;
		1322	my $guard = cf::lock_acquire "user_save:$path";
		1323
		1324	return if $pl->{deny_save};
		1325
		1326	aio_mkdir playerdir $pl, 0770;
		1327	$pl->{last_save} = $cf::RUNTIME;
		1328
		1329	$pl->save_pl ($path);
		1330	cf::cede_to_tick;
		1331	}
		1332
		1333	sub new($) {
		1334	my ($login) = @_;
		1335
		1336	my $self = create;
		1337
		1338	$self->ob->name ($login);
		1339	$self->{deny_save} = 1;
		1340
		1341	$cf::PLAYER{$login} = $self;
		1342
		1343	$self
		1344	}
		1345
		1346	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1347
		1348	=cut
		1349
		1350	sub send_msg {
		1351	my $ns = shift->ns
		1352	or return;
		1353	$ns->send_msg (@_);
		1354	}
		1355
		1356	=item $pl->quit_character
		1357
		1358	Nukes the player without looking back. If logged in, the connection will
		1359	be destroyed. May block for a long time.
		1360
		1361	=cut
		1362
		1363	sub quit_character {
		1364	my ($pl) = @_;
		1365
		1366	my $name = $pl->ob->name;
		1367
		1368	$pl->{deny_save} = 1;
		1369	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1370
		1371	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1372	$pl->deactivate;
		1373	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1374	$pl->ns->destroy if $pl->ns;
		1375
		1376	my $path = playerdir $pl;
		1377	my $temp = "$path~$cf::RUNTIME~deleting~";
		1378	aio_rename $path, $temp;
		1379	delete $cf::PLAYER{$pl->ob->name};
		1380	$pl->destroy;
		1381
		1382	my $prefix = qr<^~\Q$name\E/>;
		1383
		1384	# nuke player maps
		1385	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1386
		1387	IO::AIO::aio_rmtree $temp;
		1388	}
		1389
		1390	=item $pl->kick
		1391
		1392	Kicks a player out of the game. This destroys the connection.
		1393
		1394	=cut
		1395
		1396	sub kick {
		1397	my ($pl, $kicker) = @_;
		1398
		1399	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1400	$pl->killer ("kicked");
		1401	$pl->ns->destroy;
		1402	}
		1403
		1404	=item cf::player::list_logins
		1405
		1406	Returns am arrayref of all valid playernames in the system, can take a
		1407	while and may block, so not sync_job-capable, ever.
		1408
		1409	=cut
		1410
		1411	sub list_logins {
		1412	my $dirs = aio_readdir $PLAYERDIR
		1413	or return [];
		1414
		1415	my @logins;
		1416
		1417	for my $login (@$dirs) {
		1418	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1419	aio_read $fh, 0, 512, my $buf, 0 or next;
		1420	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1421
		1422	utf8::decode $login;
		1423	push @logins, $login;
		1424	}
		1425
		1426	\@logins
		1427	}
		1428
		1429	=item $player->maps
		1430
		1431	Returns an arrayref of map paths that are private for this
		1432	player. May block.
		1433
		1434	=cut
		1435
		1436	sub maps($) {
		1437	my ($pl) = @_;
		1438
		1439	$pl = ref $pl ? $pl->ob->name : $pl;
		1440
		1441	my $files = aio_readdir playerdir $pl
		1442	or return;
		1443
		1444	my @paths;
		1445
		1446	for (@$files) {
		1447	utf8::decode $_;
		1448	next if /\.(?:pl|pst)$/;
		1449	next unless /^$PATH_SEP/o;
		1450
		1451	push @paths, cf::map::normalise "~$pl/$_";
		1452	}
		1453
		1454	\@paths
		1455	}
		1456
		1457	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1458
		1459	Expand crossfire pod fragments into protocol xml.
		1460
		1461	=cut
		1462
		1463	sub expand_cfpod {
		1464	((my $self), (local $_)) = @_;
		1465
		1466	# escape & and <
		1467	s/&/&amp;/g;
		1468	s/(?<![BIUGH])</&lt;/g;
		1469
		1470	# this is buggy, it needs to properly take care of nested <'s
		1471
		1472	1 while
		1473	# replace B<>, I<>, U<> etc.
		1474	s/B<([^\>]*)>/<b>$1<\/b>/
		1475	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1476	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1477	# replace G<male|female> tags
		1478	|| s{G<([^>|]*)\|([^>]*)>}{
		1479	$self->gender ? $2 : $1
		1480	}ge
		1481	# replace H<hint text>
		1482	|| s{H<([^\>]*)>}
		1483	{
		1484	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1485	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1486	"")
		1487	[$self->{hintmode}]
		1488	}ge;
		1489
		1490	# create single paragraphs (very hackish)
		1491	s/(?<=\S)\n(?=\w)/ /g;
		1492
		1493	# compress some whitespace
		1494	s/\s+\n/\n/g; # ws line-ends
		1495	s/\n\n+/\n/g; # double lines
		1496	s/^\n+//; # beginning lines
		1497	s/\n+$//; # ending lines
		1498
		1499	$_
		1500	}
		1501
		1502	sub hintmode {
		1503	$_[0]{hintmode} = $_[1] if @_ > 1;
		1504	$_[0]{hintmode}
		1505	}
		1506
		1507	=item $player->ext_reply ($msgid, @msg)
		1508
		1509	Sends an ext reply to the player.
		1510
		1511	=cut
		1512
		1513	sub ext_reply($$@) {
		1514	my ($self, $id, @msg) = @_;
		1515
		1516	$self->ns->ext_reply ($id, @msg)
		1517	}
		1518
		1519	=item $player->ext_msg ($type, @msg)
		1520
		1521	Sends an ext event to the client.
		1522
		1523	=cut
		1524
		1525	sub ext_msg($$@) {
		1526	my ($self, $type, @msg) = @_;
		1527
		1528	$self->ns->ext_msg ($type, @msg);
		1529	}
		1530
		1531	=head3 cf::region
		1532
		1533	=over 4
		1534
		1535	=cut
		1536
		1537	package cf::region;
		1538
		1539	=item cf::region::find_by_path $path
		1540
		1541	Tries to decuce the likely region for a map knowing only its path.
		1542
		1543	=cut
		1544
		1545	sub find_by_path($) {
		1546	my ($path) = @_;
		1547
		1548	my ($match, $specificity);
		1549
		1550	for my $region (list) {
		1551	if ($region->{match} && $path =~ $region->{match}) {
		1552	($match, $specificity) = ($region, $region->specificity)
		1553	if $region->specificity > $specificity;
		1554	}
		1555	}
		1556
		1557	$match
		1558	}
		1559
		1560	=back
		1561
		1562	=head3 cf::map
		1563
		1564	=over 4
		1565
		1566	=cut
		1567
		1568	package cf::map;
		1569
		1570	use Fcntl;
		1571	use Coro::AIO;
		1572
		1573	use overload
		1574	'""' => \&as_string,
		1575	fallback => 1;
		1576
		1577	our $MAX_RESET = 3600;
		1578	our $DEFAULT_RESET = 3000;
		1579
		1580	sub generate_random_map {
		1581	my ($self, $rmp) = @_;
		1582	# mit "rum" bekleckern, nicht
		1583	$self->_create_random_map (
		1584	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1585	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1586	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1587	$rmp->{exit_on_final_map},
		1588	$rmp->{xsize}, $rmp->{ysize},
		1589	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1590	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1591	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1592	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1593	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1594	(cf::region::find $rmp->{region}), $rmp->{custom}
		1595	)
		1596	}
		1597
		1598	=item cf::map->register ($regex, $prio)
		1599
		1600	Register a handler for the map path matching the given regex at the
		1601	givne priority (higher is better, built-in handlers have priority 0, the
		1602	default).
		1603
		1604	=cut
		1605
626	sub register {	1606	sub register {
		1607	my (undef, $regex, $prio) = @_;
		1608	my $pkg = caller;
		1609
		1610	no strict;
		1611	push @{"$pkg\::ISA"}, __PACKAGE__;
		1612
		1613	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1614	}
		1615
		1616	# also paths starting with '/'
		1617	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1618
		1619	sub thawer_merge {
627	my ($base, $pkg) = @_;	1620	my ($self, $merge) = @_;
628		1621
629	#TODO	1622	# we have to keep some variables in memory intact
630	}	1623	local $self->{path};
		1624	local $self->{load_path};
631		1625
632	sub load_extension {	1626	$self->SUPER::thawer_merge ($merge);
		1627	}
		1628
		1629	sub normalise {
633	my ($path) = @_;	1630	my ($path, $base) = @_;
634		1631
635	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1632	$path = "$path"; # make sure its a string
636	my $base = $1;
637	my $pkg = $1;
638	$pkg =~ s/[^[:word:]]/_/g;
639	$pkg = "ext::$pkg";
640		1633
641	warn "loading '$path' into '$pkg'\n";	1634	$path =~ s/\.map$//;
642		1635
643	open my $fh, "<:utf8", $path	1636	# map plan:
644	or die "$path: $!";	1637	#
		1638	# /! non-realised random map exit (special hack!)
		1639	# {... are special paths that are not being touched
		1640	# ?xxx/... are special absolute paths
		1641	# ?random/... random maps
		1642	# /... normal maps
		1643	# ~user/... per-player map of a specific user
645		1644
646	my $source =	1645	$path =~ s/$PATH_SEP/\//go;
647	"package $pkg; use strict; use utf8;\n"
648	. "#line 1 \"$path\"\n{\n"
649	. (do { local $/; <$fh> })
650	. "\n};\n1";
651		1646
652	eval $source	1647	# treat it as relative path if it starts with
653	or die $@ ? "$path: $@\n"	1648	# something that looks reasonable
654	: "extension disabled.\n";	1649	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1650	$base or Carp::carp "normalise called with relative path and no base: '$path'";
655		1651
656	push @exts, $pkg;	1652	$base =~ s{[^/]+/?$}{};
657	$ext_pkg{$base} = $pkg;	1653	$path = "$base/$path";
658
659	# no strict 'refs';
660	# @{"$pkg\::ISA"} = ext::;
661
662	register $base, $pkg;
663	}
664
665	sub unload_extension {
666	my ($pkg) = @_;
667
668	warn "removing extension $pkg\n";
669
670	# remove hooks
671	#TODO
672	# for my $idx (0 .. $#PLUGIN_EVENT) {
673	# delete $hook[$idx]{$pkg};
674	# }	1654	}
675		1655
676	# remove commands	1656	for ($path) {
677	for my $name (keys %COMMAND) {	1657	redo if s{//}{/};
678	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1658	redo if s{/\.?/}{/};
		1659	redo if s{/[^/]+/\.\./}{/};
		1660	}
679		1661
680	if (@cb) {	1662	$path
681	$COMMAND{$name} = \@cb;	1663	}
		1664
		1665	sub new_from_path {
		1666	my (undef, $path, $base) = @_;
		1667
		1668	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1669
		1670	$path = normalise $path, $base;
		1671
		1672	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1673	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1674	my $self = bless cf::map::new, $pkg;
		1675	$self->{path} = $path; $self->path ($path);
		1676	$self->init; # pass $1 etc.
		1677	return $self;
		1678	}
		1679	}
		1680
		1681	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1682	()
		1683	}
		1684
		1685	sub init {
		1686	my ($self) = @_;
		1687
		1688	$self
		1689	}
		1690
		1691	sub as_string {
		1692	my ($self) = @_;
		1693
		1694	"$self->{path}"
		1695	}
		1696
		1697	# the displayed name, this is a one way mapping
		1698	sub visible_name {
		1699	&as_string
		1700	}
		1701
		1702	# the original (read-only) location
		1703	sub load_path {
		1704	my ($self) = @_;
		1705
		1706	"$MAPDIR/$self->{path}.map"
		1707	}
		1708
		1709	# the temporary/swap location
		1710	sub save_path {
		1711	my ($self) = @_;
		1712
		1713	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1714	"$TMPDIR/$path.map"
		1715	}
		1716
		1717	# the unique path, undef == no special unique path
		1718	sub uniq_path {
		1719	my ($self) = @_;
		1720
		1721	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1722	"$UNIQUEDIR/$path"
		1723	}
		1724
		1725	# and all this just because we cannot iterate over
		1726	# all maps in C++...
		1727	sub change_all_map_light {
		1728	my ($change) = @_;
		1729
		1730	$_->change_map_light ($change)
		1731	for grep $_->outdoor, values %cf::MAP;
		1732	}
		1733
		1734	sub decay_objects {
		1735	my ($self) = @_;
		1736
		1737	return if $self->{deny_reset};
		1738
		1739	$self->do_decay_objects;
		1740	}
		1741
		1742	sub unlink_save {
		1743	my ($self) = @_;
		1744
		1745	utf8::encode (my $save = $self->save_path);
		1746	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1747	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1748	}
		1749
		1750	sub load_header_from($) {
		1751	my ($self, $path) = @_;
		1752
		1753	utf8::encode $path;
		1754	#aio_open $path, O_RDONLY, 0
		1755	# or return;
		1756
		1757	$self->_load_header ($path)
		1758	or return;
		1759
		1760	$self->{load_path} = $path;
		1761
		1762	1
		1763	}
		1764
		1765	sub load_header_orig {
		1766	my ($self) = @_;
		1767
		1768	$self->load_header_from ($self->load_path)
		1769	}
		1770
		1771	sub load_header_temp {
		1772	my ($self) = @_;
		1773
		1774	$self->load_header_from ($self->save_path)
		1775	}
		1776
		1777	sub prepare_temp {
		1778	my ($self) = @_;
		1779
		1780	$self->last_access ((delete $self->{last_access})
		1781	|| $cf::RUNTIME); #d#
		1782	# safety
		1783	$self->{instantiate_time} = $cf::RUNTIME
		1784	if $self->{instantiate_time} > $cf::RUNTIME;
		1785	}
		1786
		1787	sub prepare_orig {
		1788	my ($self) = @_;
		1789
		1790	$self->{load_original} = 1;
		1791	$self->{instantiate_time} = $cf::RUNTIME;
		1792	$self->last_access ($cf::RUNTIME);
		1793	$self->instantiate;
		1794	}
		1795
		1796	sub load_header {
		1797	my ($self) = @_;
		1798
		1799	if ($self->load_header_temp) {
		1800	$self->prepare_temp;
682	} else {	1801	} else {
683	delete $COMMAND{$name};	1802	$self->load_header_orig
684	}	1803	or return;
		1804	$self->prepare_orig;
		1805	}
		1806
		1807	$self->{deny_reset} = 1
		1808	if $self->no_reset;
		1809
		1810	$self->default_region (cf::region::find_by_path $self->{path})
		1811	unless $self->default_region;
		1812
685	}	1813	1
		1814	}
686		1815
687	# remove extcmds	1816	sub find;
688	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1817	sub find {
689	delete $EXTCMD{$name};	1818	my ($path, $origin) = @_;
		1819
		1820	$path = normalise $path, $origin && $origin->path;
		1821
		1822	cf::lock_wait "map_find:$path";
		1823
		1824	$cf::MAP{$path} || do {
		1825	my $guard = cf::lock_acquire "map_find:$path";
		1826	my $map = new_from_path cf::map $path
		1827	or return;
		1828
		1829	$map->{last_save} = $cf::RUNTIME;
		1830
		1831	$map->load_header
		1832	or return;
		1833
		1834	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1835	# doing this can freeze the server in a sync job, obviously
		1836	#$cf::WAIT_FOR_TICK->wait;
		1837	$map->reset;
		1838	undef $guard;
		1839	return find $path;
		1840	}
		1841
		1842	$cf::MAP{$path} = $map
		1843	}
		1844	}
		1845
		1846	sub pre_load { }
		1847	sub post_load { }
		1848
		1849	sub load {
		1850	my ($self) = @_;
		1851
		1852	local $self->{deny_reset} = 1; # loading can take a long time
		1853
		1854	my $path = $self->{path};
		1855
690	}	1856	{
		1857	my $guard1 = cf::lock_acquire "map_data:$path";
		1858	my $guard2 = cf::lock_acquire "map_load:$path";
691		1859
692	if (my $cb = $pkg->can ("unload")) {	1860	return if $self->in_memory != cf::MAP_SWAPPED;
693	eval {	1861
694	$cb->($pkg);	1862	$self->in_memory (cf::MAP_LOADING);
		1863
		1864	$self->alloc;
		1865
		1866	$self->pre_load;
		1867	cf::cede_to_tick;
		1868
		1869	$self->_load_objects ($self->{load_path}, 1)
		1870	or return;
		1871
		1872	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1873	if delete $self->{load_original};
		1874
		1875	if (my $uniq = $self->uniq_path) {
		1876	utf8::encode $uniq;
		1877	if (aio_open $uniq, O_RDONLY, 0) {
		1878	$self->clear_unique_items;
		1879	$self->_load_objects ($uniq, 0);
695	1	1880	}
696	} or warn "$pkg unloaded, but with errors: $@";	1881	}
697	}
698		1882
699	Symbol::delete_package $pkg;	1883	cf::cede_to_tick;
700	}	1884	# now do the right thing for maps
		1885	$self->link_multipart_objects;
		1886	$self->difficulty ($self->estimate_difficulty)
		1887	unless $self->difficulty;
		1888	cf::cede_to_tick;
701		1889
702	sub load_extensions {	1890	unless ($self->{deny_activate}) {
703	for my $ext (<$LIBDIR/*.ext>) {	1891	$self->decay_objects;
704	next unless -r $ext;	1892	$self->fix_auto_apply;
705	eval {	1893	$self->update_buttons;
706	load_extension $ext;	1894	cf::cede_to_tick;
707	1	1895	$self->set_darkness_map;
708	} or warn "$ext not loaded: $@";	1896	cf::cede_to_tick;
709	}	1897	$self->activate;
710	}	1898	}
711		1899
712	#############################################################################	1900	$self->{last_save} = $cf::RUNTIME;
713	# load/save/clean perl data associated with a map	1901	$self->last_access ($cf::RUNTIME);
714		1902
715	*cf::mapsupport::on_clean = sub {	1903	$self->in_memory (cf::MAP_IN_MEMORY);
		1904	}
		1905
		1906	$self->post_load;
		1907	}
		1908
		1909	sub customise_for {
		1910	my ($self, $ob) = @_;
		1911
		1912	return find "~" . $ob->name . "/" . $self->{path}
		1913	if $self->per_player;
		1914
		1915	# return find "?party/" . $ob->name . "/" . $self->{path}
		1916	# if $self->per_party;
		1917
		1918	$self
		1919	}
		1920
		1921	# find and load all maps in the 3x3 area around a map
		1922	sub load_neighbours {
716	my ($map) = @_;	1923	my ($map) = @_;
717		1924
718	my $path = $map->tmpname;	1925	my @neigh; # diagonal neighbours
719	defined $path or return;
720		1926
721	unlink "$path.pst";	1927	for (0 .. 3) {
722	};	1928	my $neigh = $map->tile_path ($_)
		1929	or next;
		1930	$neigh = find $neigh, $map
		1931	or next;
		1932	$neigh->load;
723		1933
724	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1934	push @neigh,
		1935	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1936	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1937	}
725		1938
726	#############################################################################	1939	for (grep defined $_->[0], @neigh) {
727	# load/save perl data associated with player->ob objects	1940	my ($path, $origin) = @$_;
728		1941	my $neigh = find $path, $origin
729	sub all_objects(@) {	1942	or next;
730	@_, map all_objects ($_->inv), @_	1943	$neigh->load;
		1944	}
731	}	1945	}
732		1946
733	# TODO: compatibility cruft, remove when no longer needed	1947	sub find_sync {
734	cf::player->attach (	1948	my ($path, $origin) = @_;
735	on_load => sub {
736	my ($pl, $path) = @_;
737		1949
738	for my $o (all_objects $pl->ob) {	1950	cf::sync_job { find $path, $origin }
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1951	}
740	$o->set_ob_key_value ("_perl_data");
741		1952
742	%$o = %{ Storable::thaw pack "H*", $value };	1953	sub do_load_sync {
		1954	my ($map) = @_;
		1955
		1956	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		1957	if $Coro::current == $Coro::main;
		1958
		1959	cf::sync_job { $map->load };
		1960	}
		1961
		1962	our %MAP_PREFETCH;
		1963	our $MAP_PREFETCHER = undef;
		1964
		1965	sub find_async {
		1966	my ($path, $origin, $load) = @_;
		1967
		1968	$path = normalise $path, $origin && $origin->{path};
		1969
		1970	if (my $map = $cf::MAP{$path}) {
		1971	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		1972	}
		1973
		1974	$MAP_PREFETCH{$path} |= $load;
		1975
		1976	$MAP_PREFETCHER ||= cf::async {
		1977	while (%MAP_PREFETCH) {
		1978	while (my ($k, $v) = each %MAP_PREFETCH) {
		1979	if (my $map = find $k) {
		1980	$map->load if $v;
		1981	}
		1982
		1983	delete $MAP_PREFETCH{$k};
743	}	1984	}
744	}	1985	}
		1986	undef $MAP_PREFETCHER;
		1987	};
		1988	$MAP_PREFETCHER->prio (6);
		1989
		1990	()
		1991	}
		1992
		1993	sub save {
		1994	my ($self) = @_;
		1995
		1996	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1997
		1998	$self->{last_save} = $cf::RUNTIME;
		1999
		2000	return unless $self->dirty;
		2001
		2002	my $save = $self->save_path; utf8::encode $save;
		2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2004
		2005	$self->{load_path} = $save;
		2006
		2007	return if $self->{deny_save};
		2008
		2009	local $self->{last_access} = $self->last_access;#d#
		2010
		2011	cf::async {
		2012	$_->contr->save for $self->players;
		2013	};
		2014
		2015	if ($uniq) {
		2016	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2017	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2018	} else {
		2019	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
745	},	2020	}
746	);	2021	}
747		2022
748	#############################################################################	2023	sub swap_out {
		2024	my ($self) = @_;
749		2025
750	=head2 CORE EXTENSIONS	2026	# save first because save cedes
		2027	$self->save;
751		2028
752	Functions and methods that extend core crossfire objects.	2029	my $lock = cf::lock_acquire "map_data:$self->{path}";
753		2030
754	=head3 cf::player	2031	return if $self->players;
		2032	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2033	return if $self->{deny_save};
		2034
		2035	$self->clear;
		2036	$self->in_memory (cf::MAP_SWAPPED);
		2037	}
		2038
		2039	sub reset_at {
		2040	my ($self) = @_;
		2041
		2042	# TODO: safety, remove and allow resettable per-player maps
		2043	return 1e99 if $self->{deny_reset};
		2044
		2045	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2046	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2047
		2048	$time + $to
		2049	}
		2050
		2051	sub should_reset {
		2052	my ($self) = @_;
		2053
		2054	$self->reset_at <= $cf::RUNTIME
		2055	}
		2056
		2057	sub reset {
		2058	my ($self) = @_;
		2059
		2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2061
		2062	return if $self->players;
		2063
		2064	warn "resetting map ", $self->path;
		2065
		2066	$self->in_memory (cf::MAP_SWAPPED);
		2067
		2068	# need to save uniques path
		2069	unless ($self->{deny_save}) {
		2070	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2071
		2072	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2073	if $uniq;
		2074	}
		2075
		2076	delete $cf::MAP{$self->path};
		2077
		2078	$self->clear;
		2079
		2080	$_->clear_links_to ($self) for values %cf::MAP;
		2081
		2082	$self->unlink_save;
		2083	$self->destroy;
		2084	}
		2085
		2086	my $nuke_counter = "aaaa";
		2087
		2088	sub nuke {
		2089	my ($self) = @_;
		2090
		2091	{
		2092	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2093
		2094	delete $cf::MAP{$self->path};
		2095
		2096	bless $self, "cf::map";
		2097	delete $self->{deny_reset};
		2098	$self->{deny_save} = 1;
		2099	$self->reset_timeout (1);
		2100	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2101
		2102	$self->unlink_save;
		2103
		2104	$cf::MAP{$self->path} = $self;
		2105	}
		2106
		2107	$self->reset; # polite request, might not happen
		2108	}
		2109
		2110	=item $maps = cf::map::tmp_maps
		2111
		2112	Returns an arrayref with all map paths of currently instantiated and saved
		2113	maps. May block.
		2114
		2115	=cut
		2116
		2117	sub tmp_maps() {
		2118	[
		2119	map {
		2120	utf8::decode $_;
		2121	/\.map$/
		2122	? normalise $_
		2123	: ()
		2124	} @{ aio_readdir $TMPDIR or [] }
		2125	]
		2126	}
		2127
		2128	=item $maps = cf::map::random_maps
		2129
		2130	Returns an arrayref with all map paths of currently instantiated and saved
		2131	random maps. May block.
		2132
		2133	=cut
		2134
		2135	sub random_maps() {
		2136	[
		2137	map {
		2138	utf8::decode $_;
		2139	/\.map$/
		2140	? normalise "?random/$_"
		2141	: ()
		2142	} @{ aio_readdir $RANDOMDIR or [] }
		2143	]
		2144	}
		2145
		2146	=item cf::map::unique_maps
		2147
		2148	Returns an arrayref of paths of all shared maps that have
		2149	instantiated unique items. May block.
		2150
		2151	=cut
		2152
		2153	sub unique_maps() {
		2154	[
		2155	map {
		2156	utf8::decode $_;
		2157	/\.map$/
		2158	? normalise $_
		2159	: ()
		2160	} @{ aio_readdir $UNIQUEDIR or [] }
		2161	]
		2162	}
		2163
		2164	package cf;
		2165
		2166	=back
		2167
		2168	=head3 cf::object
		2169
		2170	=cut
		2171
		2172	package cf::object;
755		2173
756	=over 4	2174	=over 4
757		2175
758	=item cf::player::exists $login	2176	=item $ob->inv_recursive
759		2177
760	Returns true when the given account exists.	2178	Returns the inventory of the object _and_ their inventories, recursively.
761		2179
762	=cut	2180	=cut
763		2181
764	sub cf::player::exists($) {	2182	sub inv_recursive_;
765	cf::player::find $_[0]	2183	sub inv_recursive_ {
766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2184	map { $_, inv_recursive_ $_->inv } @_
767	}	2185	}
768		2186
769	=item $player->ext_reply ($msgid, $msgtype, %msg)	2187	sub inv_recursive {
770		2188	inv_recursive_ inv $_[0]
771	Sends an ext reply to the player.
772
773	=cut
774
775	sub cf::player::ext_reply($$$%) {
776	my ($self, $id, %msg) = @_;
777
778	$msg{msgid} = $id;
779
780	$self->send ("ext " . to_json \%msg);
781	}	2189	}
		2190
		2191	package cf;
782		2192
783	=back	2193	=back
784		2194
785	=head3 cf::object::player	2195	=head3 cf::object::player
786		2196
…		…
802		2212
803	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2213	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
804		2214
805	if ($self->{record_replies}) {	2215	if ($self->{record_replies}) {
806	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2216	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2217
807	} else {	2218	} else {
		2219	my $pl = $self->contr;
		2220
		2221	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2222	my $dialog = $pl->{npc_dialog};
		2223	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2224
		2225	} else {
808	$msg = $npc->name . " says: $msg" if $npc;	2226	$msg = $npc->name . " says: $msg" if $npc;
809	$self->message ($msg, $flags);	2227	$self->message ($msg, $flags);
		2228	}
810	}	2229	}
		2230	}
		2231
		2232	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2233
		2234	=cut
		2235
		2236	sub cf::object::send_msg {
		2237	my $pl = shift->contr
		2238	or return;
		2239	$pl->send_msg (@_);
811	}	2240	}
812		2241
813	=item $player_object->may ("access")	2242	=item $player_object->may ("access")
814		2243
815	Returns wether the given player is authorized to access resource "access"	2244	Returns wether the given player is authorized to access resource "access"
…		…
824	(ref $cf::CFG{"may_$access"}	2253	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2254	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	2255	: $cf::CFG{"may_$access"})
827	}	2256	}
828		2257
		2258	=item $player_object->enter_link
		2259
		2260	Freezes the player and moves him/her to a special map (C<{link}>).
		2261
		2262	The player should be reasonably safe there for short amounts of time. You
		2263	I<MUST> call C<leave_link> as soon as possible, though.
		2264
		2265	Will never block.
		2266
		2267	=item $player_object->leave_link ($map, $x, $y)
		2268
		2269	Moves the player out of the special C<{link}> map onto the specified
		2270	map. If the map is not valid (or omitted), the player will be moved back
		2271	to the location he/she was before the call to C<enter_link>, or, if that
		2272	fails, to the emergency map position.
		2273
		2274	Might block.
		2275
		2276	=cut
		2277
		2278	sub link_map {
		2279	unless ($LINK_MAP) {
		2280	$LINK_MAP = cf::map::find "{link}"
		2281	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2282	$LINK_MAP->load;
		2283	}
		2284
		2285	$LINK_MAP
		2286	}
		2287
		2288	sub cf::object::player::enter_link {
		2289	my ($self) = @_;
		2290
		2291	$self->deactivate_recursive;
		2292
		2293	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2294
		2295	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2296	if $self->map && $self->map->{path} ne "{link}";
		2297
		2298	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2299	}
		2300
		2301	sub cf::object::player::leave_link {
		2302	my ($self, $map, $x, $y) = @_;
		2303
		2304	return unless $self->contr->active;
		2305
		2306	my $link_pos = delete $self->{_link_pos};
		2307
		2308	unless ($map) {
		2309	# restore original map position
		2310	($map, $x, $y) = @{ $link_pos || [] };
		2311	$map = cf::map::find $map;
		2312
		2313	unless ($map) {
		2314	($map, $x, $y) = @$EMERGENCY_POSITION;
		2315	$map = cf::map::find $map
		2316	or die "FATAL: cannot load emergency map\n";
		2317	}
		2318	}
		2319
		2320	($x, $y) = (-1, -1)
		2321	unless (defined $x) && (defined $y);
		2322
		2323	# use -1 or undef as default coordinates, not 0, 0
		2324	($x, $y) = ($map->enter_x, $map->enter_y)
		2325	if $x <=0 && $y <= 0;
		2326
		2327	$map->load;
		2328	$map->load_neighbours;
		2329
		2330	return unless $self->contr->active;
		2331	$self->activate_recursive;
		2332
		2333	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2334	$self->enter_map ($map, $x, $y);
		2335	}
		2336
		2337	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2338
		2339	Moves the player to the given map-path and coordinates by first freezing
		2340	her, loading and preparing them map, calling the provided $check callback
		2341	that has to return the map if sucecssful, and then unfreezes the player on
		2342	the new (success) or old (failed) map position. In either case, $done will
		2343	be called at the end of this process.
		2344
		2345	=cut
		2346
		2347	our $GOTOGEN;
		2348
		2349	sub cf::object::player::goto {
		2350	my ($self, $path, $x, $y, $check, $done) = @_;
		2351
		2352	# do generation counting so two concurrent goto's will be executed in-order
		2353	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2354
		2355	$self->enter_link;
		2356
		2357	(async {
		2358	my $map = eval {
		2359	my $map = cf::map::find $path;
		2360
		2361	if ($map) {
		2362	$map = $map->customise_for ($self);
		2363	$map = $check->($map) if $check && $map;
		2364	} else {
		2365	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2366	}
		2367
		2368	$map
		2369	};
		2370
		2371	if ($@) {
		2372	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2373	LOG llevError | logBacktrace, Carp::longmess $@;
		2374	}
		2375
		2376	if ($gen == $self->{_goto_generation}) {
		2377	delete $self->{_goto_generation};
		2378	$self->leave_link ($map, $x, $y);
		2379	}
		2380
		2381	$done->() if $done;
		2382	})->prio (1);
		2383	}
		2384
		2385	=item $player_object->enter_exit ($exit_object)
		2386
		2387	=cut
		2388
		2389	sub parse_random_map_params {
		2390	my ($spec) = @_;
		2391
		2392	my $rmp = { # defaults
		2393	xsize => (cf::rndm 15, 40),
		2394	ysize => (cf::rndm 15, 40),
		2395	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2396	#layout => string,
		2397	};
		2398
		2399	for (split /\n/, $spec) {
		2400	my ($k, $v) = split /\s+/, $_, 2;
		2401
		2402	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2403	}
		2404
		2405	$rmp
		2406	}
		2407
		2408	sub prepare_random_map {
		2409	my ($exit) = @_;
		2410
		2411	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2412
		2413	# all this does is basically replace the /! path by
		2414	# a new random map path (?random/...) with a seed
		2415	# that depends on the exit object
		2416
		2417	my $rmp = parse_random_map_params $exit->msg;
		2418
		2419	if ($exit->map) {
		2420	$rmp->{region} = $exit->region->name;
		2421	$rmp->{origin_map} = $exit->map->path;
		2422	$rmp->{origin_x} = $exit->x;
		2423	$rmp->{origin_y} = $exit->y;
		2424	}
		2425
		2426	$rmp->{random_seed} ||= $exit->random_seed;
		2427
		2428	my $data = cf::to_json $rmp;
		2429	my $md5 = Digest::MD5::md5_hex $data;
		2430	my $meta = "$RANDOMDIR/$md5.meta";
		2431
		2432	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2433	aio_write $fh, 0, (length $data), $data, 0;
		2434	undef $fh;
		2435	aio_rename "$meta~", $meta;
		2436
		2437	$exit->slaying ("?random/$md5");
		2438	$exit->msg (undef);
		2439	}
		2440	}
		2441
		2442	sub cf::object::player::enter_exit {
		2443	my ($self, $exit) = @_;
		2444
		2445	return unless $self->type == cf::PLAYER;
		2446
		2447	if ($exit->slaying eq "/!") {
		2448	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2449	# the problem is that $exit might not survive long enough
		2450	# so it needs to be done right now, right here
		2451	cf::sync_job { prepare_random_map $exit };
		2452	}
		2453
		2454	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2455	my $hp = $exit->stats->hp;
		2456	my $sp = $exit->stats->sp;
		2457
		2458	$self->enter_link;
		2459
		2460	# if exit is damned, update players death & WoR home-position
		2461	$self->contr->savebed ($slaying, $hp, $sp)
		2462	if $exit->flag (FLAG_DAMNED);
		2463
		2464	(async {
		2465	$self->deactivate_recursive; # just to be sure
		2466	unless (eval {
		2467	$self->goto ($slaying, $hp, $sp);
		2468
		2469	1;
		2470	}) {
		2471	$self->message ("Something went wrong deep within the crossfire server. "
		2472	. "I'll try to bring you back to the map you were before. "
		2473	. "Please report this to the dungeon master!",
		2474	cf::NDI_UNIQUE | cf::NDI_RED);
		2475
		2476	warn "ERROR in enter_exit: $@";
		2477	$self->leave_link;
		2478	}
		2479	})->prio (1);
		2480	}
		2481
829	=head3 cf::client	2482	=head3 cf::client
830		2483
831	=over 4	2484	=over 4
832		2485
833	=item $client->send_drawinfo ($text, $flags)	2486	=item $client->send_drawinfo ($text, $flags)
…		…
839		2492
840	sub cf::client::send_drawinfo {	2493	sub cf::client::send_drawinfo {
841	my ($self, $text, $flags) = @_;	2494	my ($self, $text, $flags) = @_;
842		2495
843	utf8::encode $text;	2496	utf8::encode $text;
844	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2497	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
845	}	2498	}
846		2499
		2500	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2501
		2502	Send a drawinfo or msg packet to the client, formatting the msg for the
		2503	client if neccessary. C<$type> should be a string identifying the type of
		2504	the message, with C<log> being the default. If C<$color> is negative, suppress
		2505	the message unless the client supports the msg packet.
		2506
		2507	=cut
		2508
		2509	sub cf::client::send_msg {
		2510	my ($self, $channel, $msg, $color, @extra) = @_;
		2511
		2512	$msg = $self->pl->expand_cfpod ($msg);
		2513
		2514	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2515
		2516	if (ref $channel) {
		2517	# send meta info to client, if not yet sent
		2518	unless (exists $self->{channel}{$channel->{id}}) {
		2519	$self->{channel}{$channel->{id}} = $channel;
		2520	$self->ext_msg (channel_info => $channel);
		2521	}
		2522
		2523	$channel = $channel->{id};
		2524	}
		2525
		2526	return unless @extra || length $msg;
		2527
		2528	if ($self->can_msg) {
		2529	# default colour, mask it out
		2530	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2531	if $color & cf::NDI_DEF;
		2532
		2533	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2534	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2535	} else {
		2536	if ($color >= 0) {
		2537	# replace some tags by gcfclient-compatible ones
		2538	for ($msg) {
		2539	1 while
		2540	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2541	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2542	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2543	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2544	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2545	}
		2546
		2547	$color &= cf::NDI_COLOR_MASK;
		2548
		2549	utf8::encode $msg;
		2550
		2551	if (0 && $msg =~ /\[/) {
		2552	# COMMAND/INFO
		2553	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2554	} else {
		2555	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2556	$self->send_packet ("drawinfo $color $msg")
		2557	}
		2558	}
		2559	}
		2560	}
		2561
		2562	=item $client->ext_msg ($type, @msg)
		2563
		2564	Sends an ext event to the client.
		2565
		2566	=cut
		2567
		2568	sub cf::client::ext_msg($$@) {
		2569	my ($self, $type, @msg) = @_;
		2570
		2571	if ($self->extcmd == 2) {
		2572	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2573	} elsif ($self->extcmd == 1) { # TODO: remove
		2574	push @msg, msgtype => "event_$type";
		2575	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2576	}
		2577	}
		2578
		2579	=item $client->ext_reply ($msgid, @msg)
		2580
		2581	Sends an ext reply to the client.
		2582
		2583	=cut
		2584
		2585	sub cf::client::ext_reply($$@) {
		2586	my ($self, $id, @msg) = @_;
		2587
		2588	if ($self->extcmd == 2) {
		2589	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2590	} elsif ($self->extcmd == 1) {
		2591	#TODO: version 1, remove
		2592	unshift @msg, msgtype => "reply", msgid => $id;
		2593	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2594	}
		2595	}
847		2596
848	=item $success = $client->query ($flags, "text", \&cb)	2597	=item $success = $client->query ($flags, "text", \&cb)
849		2598
850	Queues a query to the client, calling the given callback with	2599	Queues a query to the client, calling the given callback with
851	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2600	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
852	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2601	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
853		2602
854	Queries can fail, so check the return code. Or don't, as queries will become	2603	Queries can fail, so check the return code. Or don't, as queries will
855	reliable at some point in the future.	2604	become reliable at some point in the future.
856		2605
857	=cut	2606	=cut
858		2607
859	sub cf::client::query {	2608	sub cf::client::query {
860	my ($self, $flags, $text, $cb) = @_;	2609	my ($self, $flags, $text, $cb) = @_;
…		…
868	utf8::encode $text;	2617	utf8::encode $text;
869	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2618	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
870		2619
871	$self->send_packet ($self->{query_queue}[0][0])	2620	$self->send_packet ($self->{query_queue}[0][0])
872	if @{ $self->{query_queue} } == 1;	2621	if @{ $self->{query_queue} } == 1;
		2622
		2623	1
873	}	2624	}
874		2625
875	cf::client->attach (	2626	cf::client->attach (
		2627	on_connect => sub {
		2628	my ($ns) = @_;
		2629
		2630	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2631	},
876	on_reply => sub {	2632	on_reply => sub {
877	my ($ns, $msg) = @_;	2633	my ($ns, $msg) = @_;
878		2634
879	# this weird shuffling is so that direct followup queries	2635	# this weird shuffling is so that direct followup queries
880	# get handled first	2636	# get handled first
881	my $queue = delete $ns->{query_queue};	2637	my $queue = delete $ns->{query_queue}
		2638	or return; # be conservative, not sure how that can happen, but we saw a crash here
882		2639
883	(shift @$queue)->[1]->($msg);	2640	(shift @$queue)->[1]->($msg);
		2641	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
884		2642
885	push @{ $ns->{query_queue} }, @$queue;	2643	push @{ $ns->{query_queue} }, @$queue;
886		2644
887	if (@{ $ns->{query_queue} } == @$queue) {	2645	if (@{ $ns->{query_queue} } == @$queue) {
888	if (@$queue) {	2646	if (@$queue) {
889	$ns->send_packet ($ns->{query_queue}[0][0]);	2647	$ns->send_packet ($ns->{query_queue}[0][0]);
890	} else {	2648	} else {
891	$ns->state (ST_PLAYING);	2649	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
892	}	2650	}
893	}	2651	}
		2652	},
		2653	on_exticmd => sub {
		2654	my ($ns, $buf) = @_;
		2655
		2656	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2657
		2658	if (ref $msg) {
		2659	my ($type, $reply, @payload) =
		2660	"ARRAY" eq ref $msg
		2661	? @$msg
		2662	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2663
		2664	my @reply;
		2665
		2666	if (my $cb = $EXTICMD{$type}) {
		2667	@reply = $cb->($ns, @payload);
		2668	}
		2669
		2670	$ns->ext_reply ($reply, @reply)
		2671	if $reply;
		2672
		2673	} else {
		2674	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2675	}
		2676
		2677	cf::override;
894	},	2678	},
895	);	2679	);
896		2680
897	=item $client->coro (\&cb)	2681	=item $client->async (\&cb)
898		2682
899	Create a new coroutine, running the specified callback. The coroutine will	2683	Create a new coroutine, running the specified callback. The coroutine will
900	be automatically cancelled when the client gets destroyed (e.g. on logout,	2684	be automatically cancelled when the client gets destroyed (e.g. on logout,
901	or loss of connection).	2685	or loss of connection).
902		2686
903	=cut	2687	=cut
904		2688
905	sub cf::client::coro {	2689	sub cf::client::async {
906	my ($self, $cb) = @_;	2690	my ($self, $cb) = @_;
907		2691
908	my $coro; $coro = async {	2692	my $coro = &Coro::async ($cb);
909	eval {	2693
910	$cb->();	2694	$coro->on_destroy (sub {
911	};
912	warn $@ if $@;
913	warn "cancel myself\n";#d#
914	delete $self->{_coro}{$coro+0};	2695	delete $self->{_coro}{$coro+0};
915	};	2696	});
916		2697
917	$self->{_coro}{$coro+0} = $coro;	2698	$self->{_coro}{$coro+0} = $coro;
		2699
		2700	$coro
918	}	2701	}
919		2702
920	cf::client->attach (	2703	cf::client->attach (
921	on_destroy => sub {	2704	on_destroy => sub {
922	my ($ns) = @_;	2705	my ($ns) = @_;
923		2706
924	warn "cancel $_" for values %{ $ns->{_coro} || {} };#d#
925	$_->cancel for values %{ $ns->{_coro} || {} };	2707	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
926	},	2708	},
927	);	2709	);
928		2710
929	=back	2711	=back
930		2712
…		…
942	our $safe = new Safe "safe";	2724	our $safe = new Safe "safe";
943	our $safe_hole = new Safe::Hole;	2725	our $safe_hole = new Safe::Hole;
944		2726
945	$SIG{FPE} = 'IGNORE';	2727	$SIG{FPE} = 'IGNORE';
946		2728
947	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2729	$safe->permit_only (Opcode::opset qw(
		2730	:base_core :base_mem :base_orig :base_math
		2731	grepstart grepwhile mapstart mapwhile
		2732	sort time
		2733	));
948		2734
949	# here we export the classes and methods available to script code	2735	# here we export the classes and methods available to script code
950		2736
951	=pod	2737	=pod
952		2738
953	The following fucntions and emthods are available within a safe environment:	2739	The following functions and methods are available within a safe environment:
954		2740
955	cf::object contr pay_amount pay_player map	2741	cf::object
		2742	contr pay_amount pay_player map x y force_find force_add
		2743	insert remove name archname title slaying race decrease_ob_nr
		2744
956	cf::object::player player	2745	cf::object::player
957	cf::player peaceful	2746	player
958	cf::map trigger	2747
		2748	cf::player
		2749	peaceful
		2750
		2751	cf::map
		2752	trigger
959		2753
960	=cut	2754	=cut
961		2755
962	for (	2756	for (
963	["cf::object" => qw(contr pay_amount pay_player map)],	2757	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2758	insert remove inv name archname title slaying race
		2759	decrease_ob_nr)],
964	["cf::object::player" => qw(player)],	2760	["cf::object::player" => qw(player)],
965	["cf::player" => qw(peaceful)],	2761	["cf::player" => qw(peaceful)],
966	["cf::map" => qw(trigger)],	2762	["cf::map" => qw(trigger)],
967	) {	2763	) {
968	no strict 'refs';	2764	no strict 'refs';
…		…
1039	=back	2835	=back
1040		2836
1041	=cut	2837	=cut
1042		2838
1043	#############################################################################	2839	#############################################################################
		2840	# the server's init and main functions
1044		2841
1045	=head2 EXTENSION DATABASE SUPPORT	2842	sub load_facedata($) {
		2843	my ($path) = @_;
1046		2844
1047	Crossfire maintains a very simple database for extension use. It can	2845	# HACK to clear player env face cache, we need some signal framework
1048	currently store anything that can be serialised using Storable, which	2846	# for this (global event?)
1049	excludes objects.	2847	%ext::player_env::MUSIC_FACE_CACHE = ();
1050		2848
1051	The parameter C<$family> should best start with the name of the extension	2849	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1052	using it, it should be unique.
1053		2850
1054	=over 4	2851	warn "loading facedata from $path\n";
1055		2852
1056	=item $hashref = cf::db_get $family	2853	my $facedata;
		2854	0 < aio_load $path, $facedata
		2855	or die "$path: $!";
1057		2856
1058	Return a hashref for use by the extension C<$family>, which can be	2857	$facedata = Coro::Storable::thaw $facedata;
1059	modified. After modifications, you have to call C<cf::db_dirty> or
1060	C<cf::db_sync>.
1061		2858
1062	=item $value = cf::db_get $family => $key	2859	$facedata->{version} == 2
		2860	or cf::cleanup "$path: version mismatch, cannot proceed.";
1063		2861
1064	Returns a single value from the database	2862	# patch in the exptable
1065		2863	$facedata->{resource}{"res/exp_table"} = {
1066	=item cf::db_put $family => $hashref	2864	type => FT_RSRC,
1067		2865	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1068	Stores the given family hashref into the database. Updates are delayed, if
1069	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1070
1071	=item cf::db_put $family => $key => $value
1072
1073	Stores the given C<$value> in the family hash. Updates are delayed, if you
1074	want the data to be synced to disk immediately, use C<cf::db_sync>.
1075
1076	=item cf::db_dirty
1077
1078	Marks the database as dirty, to be updated at a later time.
1079
1080	=item cf::db_sync
1081
1082	Immediately write the database to disk I<if it is dirty>.
1083
1084	=cut
1085
1086	our $DB;
1087
1088	{
1089	my $path = cf::localdir . "/database.pst";
1090
1091	sub db_load() {
1092	warn "loading database $path\n";#d# remove later
1093	$DB = stat $path ? Storable::retrieve $path : { };
1094	}
1095
1096	my $pid;
1097
1098	sub db_save() {
1099	warn "saving database $path\n";#d# remove later
1100	waitpid $pid, 0 if $pid;
1101	if (0 == ($pid = fork)) {
1102	$DB->{_meta}{version} = 1;
1103	Storable::nstore $DB, "$path~";
1104	rename "$path~", $path;
1105	cf::_exit 0 if defined $pid;
1106	}
1107	}
1108
1109	my $dirty;
1110
1111	sub db_sync() {
1112	db_save if $dirty;
1113	undef $dirty;
1114	}
1115
1116	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1117	db_sync;
1118	});	2866	};
		2867	cf::cede_to_tick;
1119		2868
1120	sub db_dirty() {
1121	$dirty = 1;
1122	$idle->start;
1123	}	2869	{
		2870	my $faces = $facedata->{faceinfo};
1124		2871
1125	sub db_get($;$) {	2872	while (my ($face, $info) = each %$faces) {
1126	@_ >= 2	2873	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1127	? $DB->{$_[0]}{$_[1]}	2874	cf::face::set_visibility $idx, $info->{visibility};
1128	: ($DB->{$_[0]} ||= { })	2875	cf::face::set_magicmap $idx, $info->{magicmap};
1129	}	2876	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2877	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1130		2878
1131	sub db_put($$;$) {	2879	cf::cede_to_tick;
1132	if (@_ >= 3) {
1133	$DB->{$_[0]}{$_[1]} = $_[2];
1134	} else {
1135	$DB->{$_[0]} = $_[1];
1136	}
1137	db_dirty;
1138	}
1139
1140	cf::global->attach (
1141	prio => 10000,
1142	on_cleanup => sub {
1143	db_sync;
1144	},	2880	}
1145	);
1146	}
1147		2881
1148	#############################################################################	2882	while (my ($face, $info) = each %$faces) {
1149	# the server's main()	2883	next unless $info->{smooth};
		2884	my $idx = cf::face::find $face
		2885	or next;
		2886	if (my $smooth = cf::face::find $info->{smooth}) {
		2887	cf::face::set_smooth $idx, $smooth;
		2888	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2889	} else {
		2890	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2891	}
1150		2892
1151	sub cfg_load {	2893	cf::cede_to_tick;
		2894	}
		2895	}
		2896
		2897	{
		2898	my $anims = $facedata->{animinfo};
		2899
		2900	while (my ($anim, $info) = each %$anims) {
		2901	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2902	cf::cede_to_tick;
		2903	}
		2904
		2905	cf::anim::invalidate_all; # d'oh
		2906	}
		2907
		2908	{
		2909	# TODO: for gcfclient pleasure, we should give resources
		2910	# that gcfclient doesn't grok a >10000 face index.
		2911	my $res = $facedata->{resource};
		2912
		2913	my $soundconf = delete $res->{"res/sound.conf"};
		2914
		2915	while (my ($name, $info) = each %$res) {
		2916	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2917	my $data;
		2918
		2919	if ($info->{type} & 1) {
		2920	# prepend meta info
		2921
		2922	my $meta = $enc->encode ({
		2923	name => $name,
		2924	%{ $info->{meta} || {} },
		2925	});
		2926
		2927	$data = pack "(w/a*)*", $meta, $info->{data};
		2928	} else {
		2929	$data = $info->{data};
		2930	}
		2931
		2932	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2933	cf::face::set_type $idx, $info->{type};
		2934
		2935	cf::cede_to_tick;
		2936	}
		2937
		2938	if ($soundconf) {
		2939	$soundconf = $enc->decode (delete $soundconf->{data});
		2940
		2941	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2942	my $sound = $soundconf->{compat}[$_]
		2943	or next;
		2944
		2945	my $face = cf::face::find "sound/$sound->[1]";
		2946	cf::sound::set $sound->[0] => $face;
		2947	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2948	}
		2949
		2950	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2951	my $face = cf::face::find "sound/$v";
		2952	cf::sound::set $k => $face;
		2953	}
		2954	}
		2955	}
		2956
		2957	1
		2958	}
		2959
		2960	register_exticmd fx_want => sub {
		2961	my ($ns, $want) = @_;
		2962
		2963	while (my ($k, $v) = each %$want) {
		2964	$ns->fx_want ($k, $v);
		2965	}
		2966	};
		2967
		2968	sub reload_regions {
		2969	# HACK to clear player env face cache, we need some signal framework
		2970	# for this (global event?)
		2971	%ext::player_env::MUSIC_FACE_CACHE = ();
		2972
		2973	load_resource_file "$MAPDIR/regions"
		2974	or die "unable to load regions file\n";
		2975
		2976	for (cf::region::list) {
		2977	$_->{match} = qr/$_->{match}/
		2978	if exists $_->{match};
		2979	}
		2980	}
		2981
		2982	sub reload_facedata {
		2983	load_facedata "$DATADIR/facedata"
		2984	or die "unable to load facedata\n";
		2985	}
		2986
		2987	sub reload_archetypes {
		2988	load_resource_file "$DATADIR/archetypes"
		2989	or die "unable to load archetypes\n";
		2990	#d# NEED to laod twice to resolve forward references
		2991	# this really needs to be done in an extra post-pass
		2992	# (which needs to be synchronous, so solve it differently)
		2993	load_resource_file "$DATADIR/archetypes"
		2994	or die "unable to load archetypes\n";
		2995	}
		2996
		2997	sub reload_treasures {
		2998	load_resource_file "$DATADIR/treasures"
		2999	or die "unable to load treasurelists\n";
		3000	}
		3001
		3002	sub reload_resources {
		3003	warn "reloading resource files...\n";
		3004
		3005	reload_regions;
		3006	reload_facedata;
		3007	#reload_archetypes;#d#
		3008	reload_archetypes;
		3009	reload_treasures;
		3010
		3011	warn "finished reloading resource files\n";
		3012	}
		3013
		3014	sub init {
		3015	reload_resources;
		3016	}
		3017
		3018	sub reload_config {
1152	open my $fh, "<:utf8", cf::confdir . "/config"	3019	open my $fh, "<:utf8", "$CONFDIR/config"
1153	or return;	3020	or return;
1154		3021
1155	local $/;	3022	local $/;
1156	*CFG = YAML::Syck::Load <$fh>;	3023	*CFG = YAML::Syck::Load <$fh>;
		3024
		3025	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3026
		3027	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3028	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3029
		3030	if (exists $CFG{mlockall}) {
		3031	eval {
		3032	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3033	and die "WARNING: m(un)lockall failed: $!\n";
		3034	};
		3035	warn $@ if $@;
		3036	}
1157	}	3037	}
1158		3038
1159	sub main {	3039	sub main {
1160	cfg_load;	3040	# we must not ever block the main coroutine
1161	db_load;	3041	local $Coro::idle = sub {
		3042	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3043	(async {
		3044	Event::one_event;
		3045	})->prio (Coro::PRIO_MAX);
		3046	};
		3047
		3048	reload_config;
		3049	db_init;
1162	load_extensions;	3050	load_extensions;
		3051
		3052	$TICK_WATCHER->start;
1163	Event::loop;	3053	Event::loop;
1164	}	3054	}
1165		3055
1166	#############################################################################	3056	#############################################################################
1167	# initialisation	3057	# initialisation and cleanup
1168		3058
1169	sub _perl_reload(&) {	3059	# install some emergency cleanup handlers
		3060	BEGIN {
		3061	for my $signal (qw(INT HUP TERM)) {
		3062	Event->signal (
		3063	reentrant => 0,
		3064	data => WF_AUTOCANCEL,
		3065	signal => $signal,
		3066	prio => 0,
		3067	cb => sub {
		3068	cf::cleanup "SIG$signal";
		3069	},
		3070	);
		3071	}
		3072	}
		3073
		3074	sub write_runtime {
		3075	my $runtime = "$LOCALDIR/runtime";
		3076
		3077	# first touch the runtime file to show we are still running:
		3078	# the fsync below can take a very very long time.
		3079
		3080	IO::AIO::aio_utime $runtime, undef, undef;
		3081
		3082	my $guard = cf::lock_acquire "write_runtime";
		3083
		3084	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3085	or return;
		3086
		3087	my $value = $cf::RUNTIME + 90 + 10;
		3088	# 10 is the runtime save interval, for a monotonic clock
		3089	# 60 allows for the watchdog to kill the server.
		3090
		3091	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3092	and return;
		3093
		3094	# always fsync - this file is important
		3095	aio_fsync $fh
		3096	and return;
		3097
		3098	# touch it again to show we are up-to-date
		3099	aio_utime $fh, undef, undef;
		3100
		3101	close $fh
		3102	or return;
		3103
		3104	aio_rename "$runtime~", $runtime
		3105	and return;
		3106
		3107	warn "runtime file written.\n";
		3108
		3109	1
		3110	}
		3111
		3112	sub emergency_save() {
		3113	my $freeze_guard = cf::freeze_mainloop;
		3114
		3115	warn "enter emergency perl save\n";
		3116
		3117	cf::sync_job {
		3118	# use a peculiar iteration method to avoid tripping on perl
		3119	# refcount bugs in for. also avoids problems with players
		3120	# and maps saved/destroyed asynchronously.
		3121	warn "begin emergency player save\n";
		3122	for my $login (keys %cf::PLAYER) {
		3123	my $pl = $cf::PLAYER{$login} or next;
		3124	$pl->valid or next;
		3125	$pl->save;
		3126	}
		3127	warn "end emergency player save\n";
		3128
		3129	warn "begin emergency map save\n";
		3130	for my $path (keys %cf::MAP) {
		3131	my $map = $cf::MAP{$path} or next;
		3132	$map->valid or next;
		3133	$map->save;
		3134	}
		3135	warn "end emergency map save\n";
		3136
		3137	warn "begin emergency database checkpoint\n";
		3138	BDB::db_env_txn_checkpoint $DB_ENV;
		3139	warn "end emergency database checkpoint\n";
		3140	};
		3141
		3142	warn "leave emergency perl save\n";
		3143	}
		3144
		3145	sub post_cleanup {
1170	my ($msg) = @_;	3146	my ($make_core) = @_;
1171		3147
1172	$msg->("reloading...");	3148	warn Carp::longmess "post_cleanup backtrace"
		3149	if $make_core;
		3150	}
1173		3151
1174	eval {	3152	sub do_reload_perl() {
1175	# cancel all watchers	3153	# can/must only be called in main
		3154	if ($Coro::current != $Coro::main) {
		3155	warn "can only reload from main coroutine";
		3156	return;
		3157	}
		3158
		3159	warn "reloading...";
		3160
		3161	warn "entering sync_job";
		3162
		3163	cf::sync_job {
		3164	cf::write_runtime; # external watchdog should not bark
		3165	cf::emergency_save;
		3166	cf::write_runtime; # external watchdog should not bark
		3167
		3168	warn "syncing database to disk";
		3169	BDB::db_env_txn_checkpoint $DB_ENV;
		3170
		3171	# if anything goes wrong in here, we should simply crash as we already saved
		3172
		3173	warn "cancelling all WF_AUTOCANCEL watchers";
1176	for (Event::all_watchers) {	3174	for (Event::all_watchers) {
1177	$_->cancel if $_->data & WF_AUTOCANCEL;	3175	$_->cancel if $_->data & WF_AUTOCANCEL;
1178	}	3176	}
1179		3177
1180	# unload all extensions	3178	warn "flushing outstanding aio requests";
1181	for (@exts) {	3179	for (;;) {
1182	$msg->("unloading <$_>");	3180	BDB::flush;
1183	unload_extension $_;	3181	IO::AIO::flush;
		3182	Coro::cede;
		3183	last unless IO::AIO::nreqs || BDB::nreqs;
		3184	warn "iterate...";
		3185	}
		3186
		3187	++$RELOAD;
		3188
		3189	warn "cancelling all extension coros";
		3190	$_->cancel for values %EXT_CORO;
		3191	%EXT_CORO = ();
		3192
		3193	warn "removing commands";
		3194	%COMMAND = ();
		3195
		3196	warn "removing ext/exti commands";
		3197	%EXTCMD = ();
		3198	%EXTICMD = ();
		3199
		3200	warn "unloading/nuking all extensions";
		3201	for my $pkg (@EXTS) {
		3202	warn "... unloading $pkg";
		3203
		3204	if (my $cb = $pkg->can ("unload")) {
		3205	eval {
		3206	$cb->($pkg);
		3207	1
		3208	} or warn "$pkg unloaded, but with errors: $@";
1184	}	3209	}
1185		3210
		3211	warn "... nuking $pkg";
		3212	Symbol::delete_package $pkg;
		3213	}
		3214
1186	# unload all modules loaded from $LIBDIR	3215	warn "unloading all perl modules loaded from $LIBDIR";
1187	while (my ($k, $v) = each %INC) {	3216	while (my ($k, $v) = each %INC) {
1188	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3217	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1189		3218
1190	$msg->("removing <$k>");	3219	warn "... unloading $k";
1191	delete $INC{$k};	3220	delete $INC{$k};
1192		3221
1193	$k =~ s/\.pm$//;	3222	$k =~ s/\.pm$//;
1194	$k =~ s/\//::/g;	3223	$k =~ s/\//::/g;
1195		3224
…		…
1198	}	3227	}
1199		3228
1200	Symbol::delete_package $k;	3229	Symbol::delete_package $k;
1201	}	3230	}
1202		3231
1203	# sync database to disk
1204	cf::db_sync;
1205
1206	# get rid of safe::, as good as possible	3232	warn "getting rid of safe::, as good as possible";
1207	Symbol::delete_package "safe::$_"	3233	Symbol::delete_package "safe::$_"
1208	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	3234	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1209		3235
1210	# remove register_script_function callbacks
1211	# TODO
1212
1213	# unload cf.pm "a bit"	3236	warn "unloading cf.pm \"a bit\"";
1214	delete $INC{"cf.pm"};	3237	delete $INC{"cf.pm"};
		3238	delete $INC{"cf/pod.pm"};
1215		3239
1216	# don't, removes xs symbols, too,	3240	# don't, removes xs symbols, too,
1217	# and global variables created in xs	3241	# and global variables created in xs
1218	#Symbol::delete_package __PACKAGE__;	3242	#Symbol::delete_package __PACKAGE__;
1219		3243
1220	# reload cf.pm	3244	warn "unload completed, starting to reload now";
		3245
1221	$msg->("reloading cf.pm");	3246	warn "reloading cf.pm";
1222	require cf;	3247	require cf;
		3248	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1223		3249
1224	# load config and database again	3250	warn "loading config and database again";
1225	cf::cfg_load;	3251	cf::reload_config;
1226	cf::db_load;
1227		3252
1228	# load extensions	3253	warn "loading extensions";
1229	$msg->("load extensions");
1230	cf::load_extensions;	3254	cf::load_extensions;
1231		3255
1232	# reattach attachments to objects	3256	warn "reattaching attachments to objects/players";
1233	$msg->("reattach");	3257	_global_reattach; # objects, sockets
1234	_global_reattach;	3258	warn "reattaching attachments to maps";
		3259	reattach $_ for values %MAP;
		3260	warn "reattaching attachments to players";
		3261	reattach $_ for values %PLAYER;
		3262
		3263	warn "leaving sync_job";
		3264
		3265	1
		3266	} or do {
		3267	warn $@;
		3268	warn "error while reloading, exiting.";
		3269	exit 1;
1235	};	3270	};
1236	$msg->($@) if $@;
1237		3271
1238	$msg->("reloaded");	3272	warn "reloaded";
1239	};	3273	};
1240		3274
1241	sub perl_reload() {	3275	our $RELOAD_WATCHER; # used only during reload
1242	_perl_reload {	3276
1243	warn $_[0];	3277	sub reload_perl() {
1244	print "$_[0]\n";	3278	# doing reload synchronously and two reloads happen back-to-back,
		3279	# coro crashes during coro_state_free->destroy here.
		3280
		3281	$RELOAD_WATCHER ||= Event->timer (
		3282	reentrant => 0,
		3283	after => 0,
		3284	data => WF_AUTOCANCEL,
		3285	cb => sub {
		3286	do_reload_perl;
		3287	undef $RELOAD_WATCHER;
		3288	},
1245	};	3289	);
1246	}	3290	}
1247		3291
1248	register "<global>", __PACKAGE__;
1249
1250	register_command "perl-reload" => sub {	3292	register_command "reload" => sub {
1251	my ($who, $arg) = @_;	3293	my ($who, $arg) = @_;
1252		3294
1253	if ($who->flag (FLAG_WIZ)) {	3295	if ($who->flag (FLAG_WIZ)) {
1254	_perl_reload {	3296	$who->message ("reloading server.");
1255	warn $_[0];	3297	async { reload_perl };
1256	$who->message ($_[0]);	3298	}
		3299	};
		3300
		3301	unshift @INC, $LIBDIR;
		3302
		3303	my $bug_warning = 0;
		3304
		3305	our @WAIT_FOR_TICK;
		3306	our @WAIT_FOR_TICK_BEGIN;
		3307
		3308	sub wait_for_tick {
		3309	return unless $TICK_WATCHER->is_active;
		3310	return if $Coro::current == $Coro::main;
		3311
		3312	my $signal = new Coro::Signal;
		3313	push @WAIT_FOR_TICK, $signal;
		3314	$signal->wait;
		3315	}
		3316
		3317	sub wait_for_tick_begin {
		3318	return unless $TICK_WATCHER->is_active;
		3319	return if $Coro::current == $Coro::main;
		3320
		3321	my $signal = new Coro::Signal;
		3322	push @WAIT_FOR_TICK_BEGIN, $signal;
		3323	$signal->wait;
		3324	}
		3325
		3326	my $min = 1e6;#d#
		3327	my $avg = 10;
		3328	$TICK_WATCHER = Event->timer (
		3329	reentrant => 0,
		3330	parked => 1,
		3331	prio => 0,
		3332	at => $NEXT_TICK || $TICK,
		3333	data => WF_AUTOCANCEL,
		3334	cb => sub {
		3335	if ($Coro::current != $Coro::main) {
		3336	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3337	unless ++$bug_warning > 10;
		3338	return;
		3339	}
		3340
		3341	$NOW = $tick_start = Event::time;
		3342
		3343	cf::server_tick; # one server iteration
		3344
		3345	0 && sync_job {#d#
		3346	for(1..10) {
		3347	my $t = Event::time;
		3348	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3349	or die;
		3350
		3351	$map->width (50);
		3352	$map->height (50);
		3353	$map->alloc;
		3354	$map->_load_objects ("/tmp/x.map", 1);
		3355	my $t = Event::time - $t;
		3356
		3357	#next unless $t < 0.0013;#d#
		3358	if ($t < $min) {
		3359	$min = $t;
		3360	}
		3361	$avg = $avg * 0.99 + $t * 0.01;
		3362	}
		3363	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3364	exit 0;
		3365	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1257	};	3366	};
1258	}
1259	};
1260		3367
1261	unshift @INC, $LIBDIR;	3368	$RUNTIME += $TICK;
1262
1263	$TICK_WATCHER = Event->timer (
1264	prio => 0,
1265	at => $NEXT_TICK || 1,
1266	data => WF_AUTOCANCEL,
1267	cb => sub {
1268	cf::server_tick; # one server iteration
1269
1270	my $NOW = Event::time;
1271	$NEXT_TICK += $TICK;	3369	$NEXT_TICK += $TICK;
		3370
		3371	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3372	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3373	Coro::async_pool {
		3374	write_runtime
		3375	or warn "ERROR: unable to write runtime file: $!";
		3376	};
		3377	}
		3378
		3379	# my $AFTER = Event::time;
		3380	# warn $AFTER - $NOW;#d#
		3381
		3382	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3383	$sig->send;
		3384	}
		3385	while (my $sig = shift @WAIT_FOR_TICK) {
		3386	$sig->send;
		3387	}
		3388
		3389	$NOW = Event::time;
1272		3390
1273	# if we are delayed by four ticks or more, skip them all	3391	# if we are delayed by four ticks or more, skip them all
1274	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	3392	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1275		3393
1276	$TICK_WATCHER->at ($NEXT_TICK);	3394	$TICK_WATCHER->at ($NEXT_TICK);
1277	$TICK_WATCHER->start;	3395	$TICK_WATCHER->start;
		3396
		3397	$LOAD = ($NOW - $tick_start) / $TICK;
		3398	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3399
		3400	_post_tick;
		3401
		3402
1278	},	3403	},
1279	);	3404	);
1280		3405
		3406	{
		3407	BDB::max_poll_time $TICK * 0.1;
		3408	$BDB_POLL_WATCHER = Event->io (
		3409	reentrant => 0,
		3410	fd => BDB::poll_fileno,
		3411	poll => 'r',
		3412	prio => 0,
		3413	data => WF_AUTOCANCEL,
		3414	cb => \&BDB::poll_cb,
		3415	);
		3416	BDB::min_parallel 8;
		3417
		3418	BDB::set_sync_prepare {
		3419	my $status;
		3420	my $current = $Coro::current;
		3421	(
		3422	sub {
		3423	$status = $!;
		3424	$current->ready; undef $current;
		3425	},
		3426	sub {
		3427	Coro::schedule while defined $current;
		3428	$! = $status;
		3429	},
		3430	)
		3431	};
		3432
		3433	unless ($DB_ENV) {
		3434	$DB_ENV = BDB::db_env_create;
		3435
		3436	cf::sync_job {
		3437	eval {
		3438	BDB::db_env_open
		3439	$DB_ENV,
		3440	$BDBDIR,
		3441	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3442	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3443	0666;
		3444
		3445	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3446
		3447	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3448	$DB_ENV->set_lk_detect;
		3449	};
		3450
		3451	cf::cleanup "db_env_open(db): $@" if $@;
		3452	};
		3453	}
		3454	}
		3455
		3456	{
		3457	IO::AIO::min_parallel 8;
		3458
		3459	undef $Coro::AIO::WATCHER;
1281	IO::AIO::max_poll_time $TICK * 0.2;	3460	IO::AIO::max_poll_time $TICK * 0.1;
1282		3461	$AIO_POLL_WATCHER = Event->io (
1283	Event->io (fd => IO::AIO::poll_fileno,	3462	reentrant => 0,
1284	poll => 'r',
1285	prio => 5,
1286	data => WF_AUTOCANCEL,	3463	data => WF_AUTOCANCEL,
		3464	fd => IO::AIO::poll_fileno,
		3465	poll => 'r',
		3466	prio => 6,
1287	cb => \&IO::AIO::poll_cb);	3467	cb => \&IO::AIO::poll_cb,
		3468	);
		3469	}
		3470
		3471	my $_log_backtrace;
		3472
		3473	sub _log_backtrace {
		3474	my ($msg, @addr) = @_;
		3475
		3476	$msg =~ s/\n//;
		3477
		3478	# limit the # of concurrent backtraces
		3479	if ($_log_backtrace < 2) {
		3480	++$_log_backtrace;
		3481	async {
		3482	my @bt = fork_call {
		3483	@addr = map { sprintf "%x", $_ } @addr;
		3484	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3485	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3486	or die "addr2line: $!";
		3487
		3488	my @funcs;
		3489	my @res = <$fh>;
		3490	chomp for @res;
		3491	while (@res) {
		3492	my ($func, $line) = splice @res, 0, 2, ();
		3493	push @funcs, "[$func] $line";
		3494	}
		3495
		3496	@funcs
		3497	};
		3498
		3499	LOG llevInfo, "[ABT] $msg\n";
		3500	LOG llevInfo, "[ABT] $_\n" for @bt;
		3501	--$_log_backtrace;
		3502	};
		3503	} else {
		3504	LOG llevInfo, "[ABT] $msg\n";
		3505	LOG llevInfo, "[ABT] [suppressed]\n";
		3506	}
		3507	}
		3508
		3509	# load additional modules
		3510	use cf::pod;
		3511
		3512	END { cf::emergency_save }
1288		3513
1289	1	3514	1
1290		3515

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